Finding the Fourth Proportional to 131,659.88, 181,691.94 and 71,231.82

Step by Step Solution

1. Step 1: Write the proportion equation
   131,659.88 : 181,691.94 = 71,231.82 : x
2. Step 2: Convert to fraction form
   131,659.88/181,691.94 = 71,231.82/x
3. Step 3: Cross multiply
   131,659.88x = 181,691.94 × 71,231.82
4. Step 4: Simplify right side
   131,659.88x = 12,942,247,565.53
5. Step 5: Solve for x
   x = 12,942,247,565.53/131,659.88
6. Step 6: Final answer
   x = 98,300.62