Finding the Fourth Proportional to 6,243.80, 8,615.24 and 3,591.32

Step by Step Solution

1. Step 1: Write the proportion equation
   6,243.80 : 8,615.24 = 3,591.32 : x
2. Step 2: Convert to fraction form
   6,243.80/8,615.24 = 3,591.32/x
3. Step 3: Cross multiply
   6,243.80x = 8,615.24 × 3,591.32
4. Step 4: Simplify right side
   6,243.80x = 30,940,083.72
5. Step 5: Solve for x
   x = 30,940,083.72/6,243.80
6. Step 6: Final answer
   x = 4,955.33