Finding the Fourth Proportional to 6,411.49, 8,847.83 and 3,578.84

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.49 : 8,847.83 = 3,578.84 : x
2. Step 2: Convert to fraction form
   6,411.49/8,847.83 = 3,578.84/x
3. Step 3: Cross multiply
   6,411.49x = 8,847.83 × 3,578.84
4. Step 4: Simplify right side
   6,411.49x = 31,664,924.14
5. Step 5: Solve for x
   x = 31,664,924.14/6,411.49
6. Step 6: Final answer
   x = 4,938.78