Finding the Fourth Proportional to 16,287.63, 22,452.43 and 12,744.69

Step by Step Solution

1. Step 1: Write the proportion equation
   16,287.63 : 22,452.43 = 12,744.69 : x
2. Step 2: Convert to fraction form
   16,287.63/22,452.43 = 12,744.69/x
3. Step 3: Cross multiply
   16,287.63x = 22,452.43 × 12,744.69
4. Step 4: Simplify right side
   16,287.63x = 286,149,260.10
5. Step 5: Solve for x
   x = 286,149,260.10/16,287.63
6. Step 6: Final answer
   x = 17,568.50