Finding the Fourth Proportional to 8,826.72, 12,176.32 and 5,287.52

Step by Step Solution

1. Step 1: Write the proportion equation
   8,826.72 : 12,176.32 = 5,287.52 : x
2. Step 2: Convert to fraction form
   8,826.72/12,176.32 = 5,287.52/x
3. Step 3: Cross multiply
   8,826.72x = 12,176.32 × 5,287.52
4. Step 4: Simplify right side
   8,826.72x = 64,382,535.53
5. Step 5: Solve for x
   x = 64,382,535.53/8,826.72
6. Step 6: Final answer
   x = 7,294.05