Finding the Fourth Proportional to 6,411.69, 8,847.27 and 3,578.67

Step by Step Solution

1. Step 1: Write the proportion equation
   6,411.69 : 8,847.27 = 3,578.67 : x
2. Step 2: Convert to fraction form
   6,411.69/8,847.27 = 3,578.67/x
3. Step 3: Cross multiply
   6,411.69x = 8,847.27 × 3,578.67
4. Step 4: Simplify right side
   6,411.69x = 31,661,459.73
5. Step 5: Solve for x
   x = 31,661,459.73/6,411.69
6. Step 6: Final answer
   x = 4,938.08