Finding the Fourth Proportional to 6,613.49, 9,123.46 and 3,960.38

Step by Step Solution

1. Step 1: Write the proportion equation
   6,613.49 : 9,123.46 = 3,960.38 : x
2. Step 2: Convert to fraction form
   6,613.49/9,123.46 = 3,960.38/x
3. Step 3: Cross multiply
   6,613.49x = 9,123.46 × 3,960.38
4. Step 4: Simplify right side
   6,613.49x = 36,132,381.42
5. Step 5: Solve for x
   x = 36,132,381.42/6,613.49
6. Step 6: Final answer
   x = 5,463.43