Finding the Fourth Proportional to 16,287.50, 24,389.90 and 13,648.07

Step by Step Solution

1. Step 1: Write the proportion equation
   16,287.50 : 24,389.90 = 13,648.07 : x
2. Step 2: Convert to fraction form
   16,287.50/24,389.90 = 13,648.07/x
3. Step 3: Cross multiply
   16,287.50x = 24,389.90 × 13,648.07
4. Step 4: Simplify right side
   16,287.50x = 332,874,940.54
5. Step 5: Solve for x
   x = 332,874,940.54/16,287.50
6. Step 6: Final answer
   x = 20,437.45