Finding the Fourth Proportional to 59,132.87, 81,566.91 and 42,142.61

Step by Step Solution

1. Step 1: Write the proportion equation
   59,132.87 : 81,566.91 = 42,142.61 : x
2. Step 2: Convert to fraction form
   59,132.87/81,566.91 = 42,142.61/x
3. Step 3: Cross multiply
   59,132.87x = 81,566.91 × 42,142.61
4. Step 4: Simplify right side
   59,132.87x = 3,437,442,477.04
5. Step 5: Solve for x
   x = 3,437,442,477.04/59,132.87
6. Step 6: Final answer
   x = 58,130.82