Finding the Fourth Proportional to 16,912.72, 25,367.52 and 5,224.78

Step by Step Solution

1. Step 1: Write the proportion equation
   16,912.72 : 25,367.52 = 5,224.78 : x
2. Step 2: Convert to fraction form
   16,912.72/25,367.52 = 5,224.78/x
3. Step 3: Cross multiply
   16,912.72x = 25,367.52 × 5,224.78
4. Step 4: Simplify right side
   16,912.72x = 132,539,711.15
5. Step 5: Solve for x
   x = 132,539,711.15/16,912.72
6. Step 6: Final answer
   x = 7,836.69