Finding the Fourth Proportional to 8,112.16, 12,170.27 and 2,268.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,112.16 : 12,170.27 = 2,268.72 : x
2. Step 2: Convert to fraction form
   8,112.16/12,170.27 = 2,268.72/x
3. Step 3: Cross multiply
   8,112.16x = 12,170.27 × 2,268.72
4. Step 4: Simplify right side
   8,112.16x = 27,610,923.61
5. Step 5: Solve for x
   x = 27,610,923.61/8,112.16
6. Step 6: Final answer
   x = 3,403.65