Finding the Fourth Proportional to 6,243.50, 8,615.30 and 3,591.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,243.50 : 8,615.30 = 3,591.76 : x
2. Step 2: Convert to fraction form
   6,243.50/8,615.30 = 3,591.76/x
3. Step 3: Cross multiply
   6,243.50x = 8,615.30 × 3,591.76
4. Step 4: Simplify right side
   6,243.50x = 30,944,028.89
5. Step 5: Solve for x
   x = 30,944,028.89/6,243.50
6. Step 6: Final answer
   x = 4,956.20