Finding the Fourth Proportional to 8,936.16, 12,323.82 and 5,579.28

Step by Step Solution

1. Step 1: Write the proportion equation
   8,936.16 : 12,323.82 = 5,579.28 : x
2. Step 2: Convert to fraction form
   8,936.16/12,323.82 = 5,579.28/x
3. Step 3: Cross multiply
   8,936.16x = 12,323.82 × 5,579.28
4. Step 4: Simplify right side
   8,936.16x = 68,758,042.45
5. Step 5: Solve for x
   x = 68,758,042.45/8,936.16
6. Step 6: Final answer
   x = 7,694.36