Finding the Fourth Proportional to 131,827.83, 181,921.50 and 71,397.09

Step by Step Solution

1. Step 1: Write the proportion equation
   131,827.83 : 181,921.50 = 71,397.09 : x
2. Step 2: Convert to fraction form
   131,827.83/181,921.50 = 71,397.09/x
3. Step 3: Cross multiply
   131,827.83x = 181,921.50 × 71,397.09
4. Step 4: Simplify right side
   131,827.83x = 12,988,666,390.64
5. Step 5: Solve for x
   x = 12,988,666,390.64/131,827.83
6. Step 6: Final answer
   x = 98,527.50