Finding the Fourth Proportional to 131,877.61, 181,990.82 and 71,449.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,877.61 : 181,990.82 = 71,449.88 : x
2. Step 2: Convert to fraction form
   131,877.61/181,990.82 = 71,449.88/x
3. Step 3: Cross multiply
   131,877.61x = 181,990.82 × 71,449.88
4. Step 4: Simplify right side
   131,877.61x = 13,003,221,518.77
5. Step 5: Solve for x
   x = 13,003,221,518.77/131,877.61
6. Step 6: Final answer
   x = 98,600.68