Finding the Fourth Proportional to 131,680.98, 181,719.17 and 71,252.69

Step by Step Solution

1. Step 1: Write the proportion equation
   131,680.98 : 181,719.17 = 71,252.69 : x
2. Step 2: Convert to fraction form
   131,680.98/181,719.17 = 71,252.69/x
3. Step 3: Cross multiply
   131,680.98x = 181,719.17 × 71,252.69
4. Step 4: Simplify right side
   131,680.98x = 12,947,978,422.21
5. Step 5: Solve for x
   x = 12,947,978,422.21/131,680.98
6. Step 6: Final answer
   x = 98,328.39