Finding the Fourth Proportional to 124,795, 172,156.89 and 81,755.79

Step by Step Solution

1. Step 1: Write the proportion equation
   124,795 : 172,156.89 = 81,755.79 : x
2. Step 2: Convert to fraction form
   124,795/172,156.89 = 81,755.79/x
3. Step 3: Cross multiply
   124,795x = 172,156.89 × 81,755.79
4. Step 4: Simplify right side
   124,795x = 14,074,822,545.89
5. Step 5: Solve for x
   x = 14,074,822,545.89/124,795
6. Step 6: Final answer
   x = 112,783.55