Sort latitude and longitude coordinates into clockwise ordered quadrilateral

Question

Problem

Users can provide up to four latitude and longitude coordinates, in any order. They do so with Google Maps. Using Google\'s Polygon

Answer 1

For those arriving here having a similar problem a year later:

I do not agree with the chosen answer's bound walk. There is no singular solution to the order even with a given clock direction. The convex hull of the given coordinates eliminates points e and f. These can then be attached anywhere along the path. Objectively, h,e,f,c can be improved to h,f,e,c keeping the direction of the x component consistent - in this case, negative.

The significance of this makes it impossible to guarantee the inclusion of any map location in the resulted area bounded by the chosen walk.