Finding the Fourth Proportional to 124,841.88, 172,510.01 and 88,969.61

Step by Step Solution

1. Step 1: Write the proportion equation
   124,841.88 : 172,510.01 = 88,969.61 : x
2. Step 2: Convert to fraction form
   124,841.88/172,510.01 = 88,969.61/x
3. Step 3: Cross multiply
   124,841.88x = 172,510.01 × 88,969.61
4. Step 4: Simplify right side
   124,841.88x = 15,348,147,003.40
5. Step 5: Solve for x
   x = 15,348,147,003.40/124,841.88
6. Step 6: Final answer
   x = 122,940.69