Finding the Fourth Proportional to 8,080.78, 12,116.22 and 3,144.68

Step by Step Solution

1. Step 1: Write the proportion equation
   8,080.78 : 12,116.22 = 3,144.68 : x
2. Step 2: Convert to fraction form
   8,080.78/12,116.22 = 3,144.68/x
3. Step 3: Cross multiply
   8,080.78x = 12,116.22 × 3,144.68
4. Step 4: Simplify right side
   8,080.78x = 38,101,634.71
5. Step 5: Solve for x
   x = 38,101,634.71/8,080.78
6. Step 6: Final answer
   x = 4,715.09