Finding the Fourth Proportional to 131,743.80, 181,806.89 and 71,314.43

Step by Step Solution

1. Step 1: Write the proportion equation
   131,743.80 : 181,806.89 = 71,314.43 : x
2. Step 2: Convert to fraction form
   131,743.80/181,806.89 = 71,314.43/x
3. Step 3: Cross multiply
   131,743.80x = 181,806.89 × 71,314.43
4. Step 4: Simplify right side
   131,743.80x = 12,965,453,464.82
5. Step 5: Solve for x
   x = 12,965,453,464.82/131,743.80
6. Step 6: Final answer
   x = 98,414.15