Finding the Fourth Proportional to 9,578.20, 13,217.88 and 5,598.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,578.20 : 13,217.88 = 5,598.52 : x
2. Step 2: Convert to fraction form
   9,578.20/13,217.88 = 5,598.52/x
3. Step 3: Cross multiply
   9,578.20x = 13,217.88 × 5,598.52
4. Step 4: Simplify right side
   9,578.20x = 74,000,565.54
5. Step 5: Solve for x
   x = 74,000,565.54/9,578.20
6. Step 6: Final answer
   x = 7,725.94