Finding the Fourth Proportional to 103,162.16, 142,359.72 and 58,450.16

Step by Step Solution

1. Step 1: Write the proportion equation
   103,162.16 : 142,359.72 = 58,450.16 : x
2. Step 2: Convert to fraction form
   103,162.16/142,359.72 = 58,450.16/x
3. Step 3: Cross multiply
   103,162.16x = 142,359.72 × 58,450.16
4. Step 4: Simplify right side
   103,162.16x = 8,320,948,411.56
5. Step 5: Solve for x
   x = 8,320,948,411.56/103,162.16
6. Step 6: Final answer
   x = 80,658.92