Finding the Fourth Proportional to 10,222.88, 14,095.92 and 8,728.16

Step by Step Solution

1. Step 1: Write the proportion equation
   10,222.88 : 14,095.92 = 8,728.16 : x
2. Step 2: Convert to fraction form
   10,222.88/14,095.92 = 8,728.16/x
3. Step 3: Cross multiply
   10,222.88x = 14,095.92 × 8,728.16
4. Step 4: Simplify right side
   10,222.88x = 123,031,445.11
5. Step 5: Solve for x
   x = 123,031,445.11/10,222.88
6. Step 6: Final answer
   x = 12,034.91