Finding the Fourth Proportional to 6,463.62, 8,919.55 and 3,949.93

Step by Step Solution

1. Step 1: Write the proportion equation
   6,463.62 : 8,919.55 = 3,949.93 : x
2. Step 2: Convert to fraction form
   6,463.62/8,919.55 = 3,949.93/x
3. Step 3: Cross multiply
   6,463.62x = 8,919.55 × 3,949.93
4. Step 4: Simplify right side
   6,463.62x = 35,231,630.31
5. Step 5: Solve for x
   x = 35,231,630.31/6,463.62
6. Step 6: Final answer
   x = 5,450.76