Finding the Fourth Proportional to 6,519.72, 8,995.60 and 3,867.76

Step by Step Solution

1. Step 1: Write the proportion equation
   6,519.72 : 8,995.60 = 3,867.76 : x
2. Step 2: Convert to fraction form
   6,519.72/8,995.60 = 3,867.76/x
3. Step 3: Cross multiply
   6,519.72x = 8,995.60 × 3,867.76
4. Step 4: Simplify right side
   6,519.72x = 34,792,821.86
5. Step 5: Solve for x
   x = 34,792,821.86/6,519.72
6. Step 6: Final answer
   x = 5,336.55