Finding the Fourth Proportional to 16,280.47, 24,354.09 and 12,302.15

Step by Step Solution

1. Step 1: Write the proportion equation
   16,280.47 : 24,354.09 = 12,302.15 : x
2. Step 2: Convert to fraction form
   16,280.47/24,354.09 = 12,302.15/x
3. Step 3: Cross multiply
   16,280.47x = 24,354.09 × 12,302.15
4. Step 4: Simplify right side
   16,280.47x = 299,607,668.29
5. Step 5: Solve for x
   x = 299,607,668.29/16,280.47
6. Step 6: Final answer
   x = 18,402.89