Rochell08, I would cut the hoyas and start over. Pot them in fast draining soil, water, let it almost dry out before you water again but mist the cuttings. That's what I would do if it was me unless nothing wrong with the last 3 vines. I would let it almost dry out before water.
Hope this help.
Jan

Rochell, I agree with Ines. It would be best to start it over. Cut back to a point where all the leaves are healthy, strip off enough leaves to poke the bar stem into some soil, then pot the cuttings up. I would water the soil lightly, then mist the soil once a day after a few days. Keep the pot in a bright spot with NO direct sun. When you see new growth, only then would I start watering normally. But do let compacta dry out pretty good between waterings. It's one of the few Hoyas that I don't worry too much about over-drying.

Denise in Omaha

Rochell, I agree with all of the above. I wouldn't wait to long before doing it since the roots are most likely rotted.
Jo

Is this the same plant with no drainage you mentioned in another thread? If so you must give it drainage holes, otherwise you will be sure to lose them all.