Finding the Fourth Proportional to 6,198.02, 8,550.78 and 3,959.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,198.02 : 8,550.78 = 3,959.31 : x
2. Step 2: Convert to fraction form
   6,198.02/8,550.78 = 3,959.31/x
3. Step 3: Cross multiply
   6,198.02x = 8,550.78 × 3,959.31
4. Step 4: Simplify right side
   6,198.02x = 33,855,188.76
5. Step 5: Solve for x
   x = 33,855,188.76/6,198.02
6. Step 6: Final answer
   x = 5,462.26