Finding the Fourth Proportional to 23,760.50, 32,788.13 and 13,149.50

Step by Step Solution

1. Step 1: Write the proportion equation
   23,760.50 : 32,788.13 = 13,149.50 : x
2. Step 2: Convert to fraction form
   23,760.50/32,788.13 = 13,149.50/x
3. Step 3: Cross multiply
   23,760.50x = 32,788.13 × 13,149.50
4. Step 4: Simplify right side
   23,760.50x = 431,147,285.75
5. Step 5: Solve for x
   x = 431,147,285.75/23,760.50
6. Step 6: Final answer
   x = 18,145.55