Finding the Fourth Proportional to 19,831.15, 27,368.72 and 10,880.38

Step by Step Solution

1. Step 1: Write the proportion equation
   19,831.15 : 27,368.72 = 10,880.38 : x
2. Step 2: Convert to fraction form
   19,831.15/27,368.72 = 10,880.38/x
3. Step 3: Cross multiply
   19,831.15x = 27,368.72 × 10,880.38
4. Step 4: Simplify right side
   19,831.15x = 297,782,073.71
5. Step 5: Solve for x
   x = 297,782,073.71/19,831.15
6. Step 6: Final answer
   x = 15,015.88