Finding the Fourth Proportional to 8,216.38, 12,326.55 and 2,670.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.38 : 12,326.55 = 2,670.28 : x
2. Step 2: Convert to fraction form
   8,216.38/12,326.55 = 2,670.28/x
3. Step 3: Cross multiply
   8,216.38x = 12,326.55 × 2,670.28
4. Step 4: Simplify right side
   8,216.38x = 32,915,339.93
5. Step 5: Solve for x
   x = 32,915,339.93/8,216.38
6. Step 6: Final answer
   x = 4,006.06