Finding the Fourth Proportional to 124,815.10, 172,224.69 and 71,101.15

Step by Step Solution

1. Step 1: Write the proportion equation
   124,815.10 : 172,224.69 = 71,101.15 : x
2. Step 2: Convert to fraction form
   124,815.10/172,224.69 = 71,101.15/x
3. Step 3: Cross multiply
   124,815.10x = 172,224.69 × 71,101.15
4. Step 4: Simplify right side
   124,815.10x = 12,245,373,517.39
5. Step 5: Solve for x
   x = 12,245,373,517.39/124,815.10
6. Step 6: Final answer
   x = 98,108.11