Finding the Fourth Proportional to 23,760.30, 32,787.78 and 13,149.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,760.30 : 32,787.78 = 13,149.30 : x
2. Step 2: Convert to fraction form
   23,760.30/32,787.78 = 13,149.30/x
3. Step 3: Cross multiply
   23,760.30x = 32,787.78 × 13,149.30
4. Step 4: Simplify right side
   23,760.30x = 431,136,355.55
5. Step 5: Solve for x
   x = 431,136,355.55/23,760.30
6. Step 6: Final answer
   x = 18,145.24