What is the value of x? enter your answer in the box

You can solve this using proportions.  There are two triangles in this diagram, which appear to be similar.  

67.2 - 32       67.2
=   results in    67.2x = 81.9(67.2-32)
       x           81.9                                  = 2882.88
                       
                 2882.88
Then x = = 42.9 (answer, units of measurement are "meters")
                     67.2