Finding the Fourth Proportional to 16,374.28, 24,563.49 and 5,280.72

Step by Step Solution

1. Step 1: Write the proportion equation
   16,374.28 : 24,563.49 = 5,280.72 : x
2. Step 2: Convert to fraction form
   16,374.28/24,563.49 = 5,280.72/x
3. Step 3: Cross multiply
   16,374.28x = 24,563.49 × 5,280.72
4. Step 4: Simplify right side
   16,374.28x = 129,712,912.91
5. Step 5: Solve for x
   x = 129,712,912.91/16,374.28
6. Step 6: Final answer
   x = 7,921.75