Finding the Fourth Proportional to 6,784.10, 9,361.78 and 3,951.56

Step by Step Solution

1. Step 1: Write the proportion equation
   6,784.10 : 9,361.78 = 3,951.56 : x
2. Step 2: Convert to fraction form
   6,784.10/9,361.78 = 3,951.56/x
3. Step 3: Cross multiply
   6,784.10x = 9,361.78 × 3,951.56
4. Step 4: Simplify right side
   6,784.10x = 36,993,578.69
5. Step 5: Solve for x
   x = 36,993,578.69/6,784.10
6. Step 6: Final answer
   x = 5,452.99