Finding the Fourth Proportional to 131,870.71, 181,981.35 and 71,442.88

Step by Step Solution

1. Step 1: Write the proportion equation
   131,870.71 : 181,981.35 = 71,442.88 : x
2. Step 2: Convert to fraction form
   131,870.71/181,981.35 = 71,442.88/x
3. Step 3: Cross multiply
   131,870.71x = 181,981.35 × 71,442.88
4. Step 4: Simplify right side
   131,870.71x = 13,001,271,750.29
5. Step 5: Solve for x
   x = 13,001,271,750.29/131,870.71
6. Step 6: Final answer
   x = 98,591.05