Finding the Fourth Proportional to 23,519.30, 32,456.52 and 12,909.11

Step by Step Solution

1. Step 1: Write the proportion equation
   23,519.30 : 32,456.52 = 12,909.11 : x
2. Step 2: Convert to fraction form
   23,519.30/32,456.52 = 12,909.11/x
3. Step 3: Cross multiply
   23,519.30x = 32,456.52 × 12,909.11
4. Step 4: Simplify right side
   23,519.30x = 418,984,786.90
5. Step 5: Solve for x
   x = 418,984,786.90/23,519.30
6. Step 6: Final answer
   x = 17,814.51