Been having trouble with this one we are expected to use the sum geometric sequences formula to solve, the answer provided is 91.7m, when I calculate it I got an answer of 92.63m . I don't know if I'm right or the answer provide is right as there have been a few mistakes in the booklet.

A tennis ball is dropped from the top of a building 50m above a paved road. In each bounce the ball reaches a vertical height that is 30% of the previous vertical height.Determine the total distance that the ball has traveled when it has contacted the road for the fourth time.

Thanks for any help.