Finding the Fourth Proportional to 13,831.92, 19,087.98 and 7,544.28

Step by Step Solution

1. Step 1: Write the proportion equation
   13,831.92 : 19,087.98 = 7,544.28 : x
2. Step 2: Convert to fraction form
   13,831.92/19,087.98 = 7,544.28/x
3. Step 3: Cross multiply
   13,831.92x = 19,087.98 × 7,544.28
4. Step 4: Simplify right side
   13,831.92x = 144,005,065.75
5. Step 5: Solve for x
   x = 144,005,065.75/13,831.92
6. Step 6: Final answer
   x = 10,411.07