Finding the Fourth Proportional to 23,200.92, 32,017.02 and 13,129.08

Step by Step Solution

1. Step 1: Write the proportion equation
   23,200.92 : 32,017.02 = 13,129.08 : x
2. Step 2: Convert to fraction form
   23,200.92/32,017.02 = 13,129.08/x
3. Step 3: Cross multiply
   23,200.92x = 32,017.02 × 13,129.08
4. Step 4: Simplify right side
   23,200.92x = 420,354,016.94
5. Step 5: Solve for x
   x = 420,354,016.94/23,200.92
6. Step 6: Final answer
   x = 18,117.99