Finding the Fourth Proportional to 115,732.50, 159,711.81 and 62,740.50

Step by Step Solution

1. Step 1: Write the proportion equation
   115,732.50 : 159,711.81 = 62,740.50 : x
2. Step 2: Convert to fraction form
   115,732.50/159,711.81 = 62,740.50/x
3. Step 3: Cross multiply
   115,732.50x = 159,711.81 × 62,740.50
4. Step 4: Simplify right side
   115,732.50x = 10,020,398,815.31
5. Step 5: Solve for x
   x = 10,020,398,815.31/115,732.50
6. Step 6: Final answer
   x = 86,582.41