Finding the Fourth Proportional to 6,411.62, 8,847.73 and 3,578.83

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.62 : 8,847.73 = 3,578.83 : x
2. Step 2: Convert to fraction form
   6,411.62/8,847.73 = 3,578.83/x
3. Step 3: Cross multiply
   6,411.62x = 8,847.73 × 3,578.83
4. Step 4: Simplify right side
   6,411.62x = 31,664,521.56
5. Step 5: Solve for x
   x = 31,664,521.56/6,411.62
6. Step 6: Final answer
   x = 4,938.61