Finding the Fourth Proportional to 8,162.94, 12,249.88 and 5,243.29

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.94 : 12,249.88 = 5,243.29 : x
2. Step 2: Convert to fraction form
   8,162.94/12,249.88 = 5,243.29/x
3. Step 3: Cross multiply
   8,162.94x = 12,249.88 × 5,243.29
4. Step 4: Simplify right side
   8,162.94x = 64,229,673.31
5. Step 5: Solve for x
   x = 64,229,673.31/8,162.94
6. Step 6: Final answer
   x = 7,868.45