Finding the Fourth Proportional to 8,725.12, 12,049.18 and 7,458.82

Step by Step Solution

1. Step 1: Write the proportion equation
   8,725.12 : 12,049.18 = 7,458.82 : x
2. Step 2: Convert to fraction form
   8,725.12/12,049.18 = 7,458.82/x
3. Step 3: Cross multiply
   8,725.12x = 12,049.18 × 7,458.82
4. Step 4: Simplify right side
   8,725.12x = 89,872,616.00
5. Step 5: Solve for x
   x = 89,872,616.00/8,725.12
6. Step 6: Final answer
   x = 10,300.45