Finding the Fourth Proportional to 8,144.37, 12,208.35 and 3,212.10

Step by Step Solution

1. Step 1: Write the proportion equation
   8,144.37 : 12,208.35 = 3,212.10 : x
2. Step 2: Convert to fraction form
   8,144.37/12,208.35 = 3,212.10/x
3. Step 3: Cross multiply
   8,144.37x = 12,208.35 × 3,212.10
4. Step 4: Simplify right side
   8,144.37x = 39,214,441.04
5. Step 5: Solve for x
   x = 39,214,441.04/8,144.37
6. Step 6: Final answer
   x = 4,814.91