Finding the Fourth Proportional to 8,162.28, 12,248.16 and 4,881.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,162.28 : 12,248.16 = 4,881.72 : x
2. Step 2: Convert to fraction form
   8,162.28/12,248.16 = 4,881.72/x
3. Step 3: Cross multiply
   8,162.28x = 12,248.16 × 4,881.72
4. Step 4: Simplify right side
   8,162.28x = 59,792,087.64
5. Step 5: Solve for x
   x = 59,792,087.64/8,162.28
6. Step 6: Final answer
   x = 7,325.41