The good news is that the base of Falls #4 is only about 20 yards from the top of Falls #3 so the hard climb is over!  Falls #4 is about 20' tall and like Falls #3 the nicer looking portion is the top. 

For the hike back to your car you have two options. You can retrace your steps back to the car or you could do what I did, which is head over to the Prospect Mountain Trail (blue medallions) and take that back to your car.  This is where GPS tracking will come in handy.  

I followed the stream up a little beyond the top of Falls #4, maybe 100 yards, then headed in a northeast direction following the contour of the land (not the most direct route) and reached the trail in about 0.2 miles.  Once I reached the Prospect Mountain Trail I turned right on the trail for a 2 mile hike back to my car.

I will try to get back to this series of falls in the spring when there should be more water flowing and will update with new photos then.