Finding the Fourth Proportional to 16,215.71, 24,315.26 and 7,443

Step by Step Solution

1. Step 1: Write the proportion equation
   16,215.71 : 24,315.26 = 7,443 : x
2. Step 2: Convert to fraction form
   16,215.71/24,315.26 = 7,443/x
3. Step 3: Cross multiply
   16,215.71x = 24,315.26 × 7,443
4. Step 4: Simplify right side
   16,215.71x = 180,978,442.97
5. Step 5: Solve for x
   x = 180,978,442.97/16,215.71
6. Step 6: Final answer
   x = 11,160.69