Finding the Fourth Proportional to 131,722.43, 181,777.37 and 71,293.05

Step by Step Solution

1. Step 1: Write the proportion equation
   131,722.43 : 181,777.37 = 71,293.05 : x
2. Step 2: Convert to fraction form
   131,722.43/181,777.37 = 71,293.05/x
3. Step 3: Cross multiply
   131,722.43x = 181,777.37 × 71,293.05
4. Step 4: Simplify right side
   131,722.43x = 12,959,462,771.81
5. Step 5: Solve for x
   x = 12,959,462,771.81/131,722.43
6. Step 6: Final answer
   x = 98,384.64