Finding the Fourth Proportional to 124,139.75, 171,311.41 and 67,550.15

Step by Step Solution

1. Step 1: Write the proportion equation
   124,139.75 : 171,311.41 = 67,550.15 : x
2. Step 2: Convert to fraction form
   124,139.75/171,311.41 = 67,550.15/x
3. Step 3: Cross multiply
   124,139.75x = 171,311.41 × 67,550.15
4. Step 4: Simplify right side
   124,139.75x = 11,572,111,442.21
5. Step 5: Solve for x
   x = 11,572,111,442.21/124,139.75
6. Step 6: Final answer
   x = 93,218.42