Finding the Fourth Proportional to 23,820, 32,872.52 and 13,209.41

Step by Step Solution

1. Step 1: Write the proportion equation
   23,820 : 32,872.52 = 13,209.41 : x
2. Step 2: Convert to fraction form
   23,820/32,872.52 = 13,209.41/x
3. Step 3: Cross multiply
   23,820x = 32,872.52 × 13,209.41
4. Step 4: Simplify right side
   23,820x = 434,226,364.00
5. Step 5: Solve for x
   x = 434,226,364.00/23,820
6. Step 6: Final answer
   x = 18,229.49