Finding the Fourth Proportional to 124,061.88, 171,117.72 and 85,833.12

Step by Step Solution

1. Step 1: Write the proportion equation
   124,061.88 : 171,117.72 = 85,833.12 : x
2. Step 2: Convert to fraction form
   124,061.88/171,117.72 = 85,833.12/x
3. Step 3: Cross multiply
   124,061.88x = 171,117.72 × 85,833.12
4. Step 4: Simplify right side
   124,061.88x = 14,687,567,794.89
5. Step 5: Solve for x
   x = 14,687,567,794.89/124,061.88
6. Step 6: Final answer
   x = 118,389.05