Finding the Fourth Proportional to 8,582.86, 12,895.89 and 5,464.27

Step by Step Solution

1. Step 1: Write the proportion equation
   8,582.86 : 12,895.89 = 5,464.27 : x
2. Step 2: Convert to fraction form
   8,582.86/12,895.89 = 5,464.27/x
3. Step 3: Cross multiply
   8,582.86x = 12,895.89 × 5,464.27
4. Step 4: Simplify right side
   8,582.86x = 70,466,624.85
5. Step 5: Solve for x
   x = 70,466,624.85/8,582.86
6. Step 6: Final answer
   x = 8,210.16