Finding the Fourth Proportional to 6,747.96, 9,308.29 and 4,057.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,747.96 : 9,308.29 = 4,057.31 : x
2. Step 2: Convert to fraction form
   6,747.96/9,308.29 = 4,057.31/x
3. Step 3: Cross multiply
   6,747.96x = 9,308.29 × 4,057.31
4. Step 4: Simplify right side
   6,747.96x = 37,766,640.55
5. Step 5: Solve for x
   x = 37,766,640.55/6,747.96
6. Step 6: Final answer
   x = 5,596.75