Finding the Fourth Proportional to 124,864.11, 172,323.72 and 71,166.42

Step by Step Solution

1. Step 1: Write the proportion equation
   124,864.11 : 172,323.72 = 71,166.42 : x
2. Step 2: Convert to fraction form
   124,864.11/172,323.72 = 71,166.42/x
3. Step 3: Cross multiply
   124,864.11x = 172,323.72 × 71,166.42
4. Step 4: Simplify right side
   124,864.11x = 12,263,662,233.48
5. Step 5: Solve for x
   x = 12,263,662,233.48/124,864.11
6. Step 6: Final answer
   x = 98,216.07