Finding the Fourth Proportional to 6,291.46, 8,680.89 and 3,496.90

Step by Step Solution

1. Step 1: Write the proportion equation
   6,291.46 : 8,680.89 = 3,496.90 : x
2. Step 2: Convert to fraction form
   6,291.46/8,680.89 = 3,496.90/x
3. Step 3: Cross multiply
   6,291.46x = 8,680.89 × 3,496.90
4. Step 4: Simplify right side
   6,291.46x = 30,356,204.24
5. Step 5: Solve for x
   x = 30,356,204.24/6,291.46
6. Step 6: Final answer
   x = 4,824.99