Finding the Fourth Proportional to 11,154.24, 15,386.56 and 10,026.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,154.24 : 15,386.56 = 10,026.72 : x
2. Step 2: Convert to fraction form
   11,154.24/15,386.56 = 10,026.72/x
3. Step 3: Cross multiply
   11,154.24x = 15,386.56 × 10,026.72
4. Step 4: Simplify right side
   11,154.24x = 154,276,728.88
5. Step 5: Solve for x
   x = 154,276,728.88/11,154.24
6. Step 6: Final answer
   x = 13,831.22