Finding the Fourth Proportional to 6,686.82, 9,226.73 and 3,854.31

Step by Step Solution

1. Step 1: Write the proportion equation
   6,686.82 : 9,226.73 = 3,854.31 : x
2. Step 2: Convert to fraction form
   6,686.82/9,226.73 = 3,854.31/x
3. Step 3: Cross multiply
   6,686.82x = 9,226.73 × 3,854.31
4. Step 4: Simplify right side
   6,686.82x = 35,562,658.43
5. Step 5: Solve for x
   x = 35,562,658.43/6,686.82
6. Step 6: Final answer
   x = 5,318.32