Finding the Fourth Proportional to 6,143.30, 8,477.98 and 3,491.15

Step by Step Solution

1. Step 1: Write the proportion equation
   6,143.30 : 8,477.98 = 3,491.15 : x
2. Step 2: Convert to fraction form
   6,143.30/8,477.98 = 3,491.15/x
3. Step 3: Cross multiply
   6,143.30x = 8,477.98 × 3,491.15
4. Step 4: Simplify right side
   6,143.30x = 29,597,899.88
5. Step 5: Solve for x
   x = 29,597,899.88/6,143.30
6. Step 6: Final answer
   x = 4,817.92