Finding the Fourth Proportional to 6,086.30, 8,399.07 and 3,291.80

Step by Step Solution

1. Step 1: Write the proportion equation
   6,086.30 : 8,399.07 = 3,291.80 : x
2. Step 2: Convert to fraction form
   6,086.30/8,399.07 = 3,291.80/x
3. Step 3: Cross multiply
   6,086.30x = 8,399.07 × 3,291.80
4. Step 4: Simplify right side
   6,086.30x = 27,648,016.63
5. Step 5: Solve for x
   x = 27,648,016.63/6,086.30
6. Step 6: Final answer
   x = 4,542.67