Finding the Fourth Proportional to 8,143.84, 12,154.25 and 7,356.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,143.84 : 12,154.25 = 7,356.52 : x
2. Step 2: Convert to fraction form
   8,143.84/12,154.25 = 7,356.52/x
3. Step 3: Cross multiply
   8,143.84x = 12,154.25 × 7,356.52
4. Step 4: Simplify right side
   8,143.84x = 89,413,016.79
5. Step 5: Solve for x
   x = 89,413,016.79/8,143.84
6. Step 6: Final answer
   x = 10,979.22