Finding the Fourth Proportional to 18,488.50, 25,514.37 and 10,105.18

Step by Step Solution

1. Step 1: Write the proportion equation
   18,488.50 : 25,514.37 = 10,105.18 : x
2. Step 2: Convert to fraction form
   18,488.50/25,514.37 = 10,105.18/x
3. Step 3: Cross multiply
   18,488.50x = 25,514.37 × 10,105.18
4. Step 4: Simplify right side
   18,488.50x = 257,827,301.44
5. Step 5: Solve for x
   x = 257,827,301.44/18,488.50
6. Step 6: Final answer
   x = 13,945.28