Finding the Fourth Proportional to 103,406.52, 142,695.52 and 58,086.42

Step by Step Solution

1. Step 1: Write the proportion equation
   103,406.52 : 142,695.52 = 58,086.42 : x
2. Step 2: Convert to fraction form
   103,406.52/142,695.52 = 58,086.42/x
3. Step 3: Cross multiply
   103,406.52x = 142,695.52 × 58,086.42
4. Step 4: Simplify right side
   103,406.52x = 8,288,671,553.25
5. Step 5: Solve for x
   x = 8,288,671,553.25/103,406.52
6. Step 6: Final answer
   x = 80,156.18