Finding the Fourth Proportional to 6,243.20, 8,617.35 and 3,591.46

Step by Step Solution

1. Step 1: Write the proportion equation
   6,243.20 : 8,617.35 = 3,591.46 : x
2. Step 2: Convert to fraction form
   6,243.20/8,617.35 = 3,591.46/x
3. Step 3: Cross multiply
   6,243.20x = 8,617.35 × 3,591.46
4. Step 4: Simplify right side
   6,243.20x = 30,948,867.83
5. Step 5: Solve for x
   x = 30,948,867.83/6,243.20
6. Step 6: Final answer
   x = 4,957.21