Finding the Fourth Proportional to 6,399.57, 8,830.62 and 3,566.25

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.57 : 8,830.62 = 3,566.25 : x
2. Step 2: Convert to fraction form
   6,399.57/8,830.62 = 3,566.25/x
3. Step 3: Cross multiply
   6,399.57x = 8,830.62 × 3,566.25
4. Step 4: Simplify right side
   6,399.57x = 31,492,198.58
5. Step 5: Solve for x
   x = 31,492,198.58/6,399.57
6. Step 6: Final answer
   x = 4,920.99