Finding the Fourth Proportional to 6,399.39, 8,830.94 and 3,566.62

Step by Step Solution

1. Step 1: Write the proportion equation
   6,399.39 : 8,830.94 = 3,566.62 : x
2. Step 2: Convert to fraction form
   6,399.39/8,830.94 = 3,566.62/x
3. Step 3: Cross multiply
   6,399.39x = 8,830.94 × 3,566.62
4. Step 4: Simplify right side
   6,399.39x = 31,496,600.43
5. Step 5: Solve for x
   x = 31,496,600.43/6,399.39
6. Step 6: Final answer
   x = 4,921.81