Finding the Fourth Proportional to 103,008.72, 142,166.15 and 62,174.96

Step by Step Solution

1. Step 1: Write the proportion equation
   103,008.72 : 142,166.15 = 62,174.96 : x
2. Step 2: Convert to fraction form
   103,008.72/142,166.15 = 62,174.96/x
3. Step 3: Cross multiply
   103,008.72x = 142,166.15 × 62,174.96
4. Step 4: Simplify right side
   103,008.72x = 8,839,174,689.60
5. Step 5: Solve for x
   x = 8,839,174,689.60/103,008.72
6. Step 6: Final answer
   x = 85,809.97