Finding the Fourth Proportional to 18,514.52, 25,549.82 and 10,131

Step by Step Solution

1. Step 1: Write the proportion equation
   18,514.52 : 25,549.82 = 10,131 : x
2. Step 2: Convert to fraction form
   18,514.52/25,549.82 = 10,131/x
3. Step 3: Cross multiply
   18,514.52x = 25,549.82 × 10,131
4. Step 4: Simplify right side
   18,514.52x = 258,845,226.42
5. Step 5: Solve for x
   x = 258,845,226.42/18,514.52
6. Step 6: Final answer
   x = 13,980.66