Finding the Fourth Proportional to 103,404.60, 142,698.43 and 58,082.61

Step by Step Solution

1. Step 1: Write the proportion equation
   103,404.60 : 142,698.43 = 58,082.61 : x
2. Step 2: Convert to fraction form
   103,404.60/142,698.43 = 58,082.61/x
3. Step 3: Cross multiply
   103,404.60x = 142,698.43 × 58,082.61
4. Step 4: Simplify right side
   103,404.60x = 8,288,296,966.89
5. Step 5: Solve for x
   x = 8,288,296,966.89/103,404.60
6. Step 6: Final answer
   x = 80,154.04