Finding the Fourth Proportional to 85,136.56, 117,485.71 and 50,681.16

Step by Step Solution

1. Step 1: Write the proportion equation
   85,136.56 : 117,485.71 = 50,681.16 : x
2. Step 2: Convert to fraction form
   85,136.56/117,485.71 = 50,681.16/x
3. Step 3: Cross multiply
   85,136.56x = 117,485.71 × 50,681.16
4. Step 4: Simplify right side
   85,136.56x = 5,954,311,939.52
5. Step 5: Solve for x
   x = 5,954,311,939.52/85,136.56
6. Step 6: Final answer
   x = 69,938.37