Finding the Fourth Proportional to 23,411.20, 32,306.48 and 12,801.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,411.20 : 32,306.48 = 12,801.20 : x
2. Step 2: Convert to fraction form
   23,411.20/32,306.48 = 12,801.20/x
3. Step 3: Cross multiply
   23,411.20x = 32,306.48 × 12,801.20
4. Step 4: Simplify right side
   23,411.20x = 413,561,711.78
5. Step 5: Solve for x
   x = 413,561,711.78/23,411.20
6. Step 6: Final answer
   x = 17,665.12