Finding the Fourth Proportional to 5,680.88, 8,515.56 and 3,600.24

Step by Step Solution

1. Step 1: Write the proportion equation
   5,680.88 : 8,515.56 = 3,600.24 : x
2. Step 2: Convert to fraction form
   5,680.88/8,515.56 = 3,600.24/x
3. Step 3: Cross multiply
   5,680.88x = 8,515.56 × 3,600.24
4. Step 4: Simplify right side
   5,680.88x = 30,658,059.73
5. Step 5: Solve for x
   x = 30,658,059.73/5,680.88
6. Step 6: Final answer
   x = 5,396.71