Finding the Fourth Proportional to 113,962.50, 157,268.31 and 63,661.50

Step by Step Solution

1. Step 1: Write the proportion equation
   113,962.50 : 157,268.31 = 63,661.50 : x
2. Step 2: Convert to fraction form
   113,962.50/157,268.31 = 63,661.50/x
3. Step 3: Cross multiply
   113,962.50x = 157,268.31 × 63,661.50
4. Step 4: Simplify right side
   113,962.50x = 10,011,936,517.07
5. Step 5: Solve for x
   x = 10,011,936,517.07/113,962.50
6. Step 6: Final answer
   x = 87,852.90