Finding the Fourth Proportional to 102,957.52, 142,087.72 and 59,937.88

Step by Step Solution

1. Step 1: Write the proportion equation
   102,957.52 : 142,087.72 = 59,937.88 : x
2. Step 2: Convert to fraction form
   102,957.52/142,087.72 = 59,937.88/x
3. Step 3: Cross multiply
   102,957.52x = 142,087.72 × 59,937.88
4. Step 4: Simplify right side
   102,957.52x = 8,516,436,710.83
5. Step 5: Solve for x
   x = 8,516,436,710.83/102,957.52
6. Step 6: Final answer
   x = 82,717.97