Finding the Fourth Proportional to 8,806, 12,152.28 and 5,269.72

Step by Step Solution

1. Step 1: Write the proportion equation
   8,806 : 12,152.28 = 5,269.72 : x
2. Step 2: Convert to fraction form
   8,806/12,152.28 = 5,269.72/x
3. Step 3: Cross multiply
   8,806x = 12,152.28 × 5,269.72
4. Step 4: Simplify right side
   8,806x = 64,039,112.96
5. Step 5: Solve for x
   x = 64,039,112.96/8,806
6. Step 6: Final answer
   x = 7,272.21