Finding the Fourth Proportional to 131,869.01, 181,978.99 and 71,441.16

Step by Step Solution

1. Step 1: Write the proportion equation
   131,869.01 : 181,978.99 = 71,441.16 : x
2. Step 2: Convert to fraction form
   131,869.01/181,978.99 = 71,441.16/x
3. Step 3: Cross multiply
   131,869.01x = 181,978.99 × 71,441.16
4. Step 4: Simplify right side
   131,869.01x = 13,000,789,784.02
5. Step 5: Solve for x
   x = 13,000,789,784.02/131,869.01
6. Step 6: Final answer
   x = 98,588.67