Finding the Fourth Proportional to 11,362.56, 17,024.28 and 8,868.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,362.56 : 17,024.28 = 8,868.72 : x
2. Step 2: Convert to fraction form
   11,362.56/17,024.28 = 8,868.72/x
3. Step 3: Cross multiply
   11,362.56x = 17,024.28 × 8,868.72
4. Step 4: Simplify right side
   11,362.56x = 150,983,572.52
5. Step 5: Solve for x
   x = 150,983,572.52/11,362.56
6. Step 6: Final answer
   x = 13,287.81