Finding the Fourth Proportional to 87,893.72, 131,730.92 and 42,877.98

Step by Step Solution

1. Step 1: Write the proportion equation
   87,893.72 : 131,730.92 = 42,877.98 : x
2. Step 2: Convert to fraction form
   87,893.72/131,730.92 = 42,877.98/x
3. Step 3: Cross multiply
   87,893.72x = 131,730.92 × 42,877.98
4. Step 4: Simplify right side
   87,893.72x = 5,648,355,753.14
5. Step 5: Solve for x
   x = 5,648,355,753.14/87,893.72
6. Step 6: Final answer
   x = 64,263.47