Finding the Fourth Proportional to 18,119.92, 25,005.72 and 10,948.82

Step by Step Solution

1. Step 1: Write the proportion equation
   18,119.92 : 25,005.72 = 10,948.82 : x
2. Step 2: Convert to fraction form
   18,119.92/25,005.72 = 10,948.82/x
3. Step 3: Cross multiply
   18,119.92x = 25,005.72 × 10,948.82
4. Step 4: Simplify right side
   18,119.92x = 273,783,127.25
5. Step 5: Solve for x
   x = 273,783,127.25/18,119.92
6. Step 6: Final answer
   x = 15,109.51