Finding the Fourth Proportional to 8,807.43, 12,156.38 and 5,979.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,807.43 : 12,156.38 = 5,979.52 : x
2. Step 2: Convert to fraction form
   8,807.43/12,156.38 = 5,979.52/x
3. Step 3: Cross multiply
   8,807.43x = 12,156.38 × 5,979.52
4. Step 4: Simplify right side
   8,807.43x = 72,689,325.06
5. Step 5: Solve for x
   x = 72,689,325.06/8,807.43
6. Step 6: Final answer
   x = 8,253.18