Finding the Fourth Proportional to 8,216.37, 12,321.30 and 2,668.35

Step by Step Solution

1. Step 1: Write the proportion equation
   8,216.37 : 12,321.30 = 2,668.35 : x
2. Step 2: Convert to fraction form
   8,216.37/12,321.30 = 2,668.35/x
3. Step 3: Cross multiply
   8,216.37x = 12,321.30 × 2,668.35
4. Step 4: Simplify right side
   8,216.37x = 32,877,540.86
5. Step 5: Solve for x
   x = 32,877,540.86/8,216.37
6. Step 6: Final answer
   x = 4,001.47