Finding the Fourth Proportional to 59,143.48, 81,598.62 and 42,150.40

Step by Step Solution

1. Step 1: Write the proportion equation
   59,143.48 : 81,598.62 = 42,150.40 : x
2. Step 2: Convert to fraction form
   59,143.48/81,598.62 = 42,150.40/x
3. Step 3: Cross multiply
   59,143.48x = 81,598.62 × 42,150.40
4. Step 4: Simplify right side
   59,143.48x = 3,439,414,472.45
5. Step 5: Solve for x
   x = 3,439,414,472.45/59,143.48
6. Step 6: Final answer
   x = 58,153.74