Finding the Fourth Proportional to 16,449.30, 24,686.10 and 10,900.80

Step by Step Solution

1. Step 1: Write the proportion equation
   16,449.30 : 24,686.10 = 10,900.80 : x
2. Step 2: Convert to fraction form
   16,449.30/24,686.10 = 10,900.80/x
3. Step 3: Cross multiply
   16,449.30x = 24,686.10 × 10,900.80
4. Step 4: Simplify right side
   16,449.30x = 269,098,238.88
5. Step 5: Solve for x
   x = 269,098,238.88/16,449.30
6. Step 6: Final answer
   x = 16,359.25