Finding the Fourth Proportional to 8,568.32, 12,843.84 and 8,196.80

Step by Step Solution

1. Step 1: Write the proportion equation
   8,568.32 : 12,843.84 = 8,196.80 : x
2. Step 2: Convert to fraction form
   8,568.32/12,843.84 = 8,196.80/x
3. Step 3: Cross multiply
   8,568.32x = 12,843.84 × 8,196.80
4. Step 4: Simplify right side
   8,568.32x = 105,278,387.71
5. Step 5: Solve for x
   x = 105,278,387.71/8,568.32
6. Step 6: Final answer
   x = 12,286.93