Finding the Fourth Proportional to 124,980.34, 172,363.76 and 88,609.98

Step by Step Solution

1. Step 1: Write the proportion equation
   124,980.34 : 172,363.76 = 88,609.98 : x
2. Step 2: Convert to fraction form
   124,980.34/172,363.76 = 88,609.98/x
3. Step 3: Cross multiply
   124,980.34x = 172,363.76 × 88,609.98
4. Step 4: Simplify right side
   124,980.34x = 15,273,149,326.32
5. Step 5: Solve for x
   x = 15,273,149,326.32/124,980.34
6. Step 6: Final answer
   x = 122,204.41