Finding the Fourth Proportional to 18,111.42, 24,993.75 and 10,153.65

Step by Step Solution

1. Step 1: Write the proportion equation
   18,111.42 : 24,993.75 = 10,153.65 : x
2. Step 2: Convert to fraction form
   18,111.42/24,993.75 = 10,153.65/x
3. Step 3: Cross multiply
   18,111.42x = 24,993.75 × 10,153.65
4. Step 4: Simplify right side
   18,111.42x = 253,777,789.69
5. Step 5: Solve for x
   x = 253,777,789.69/18,111.42
6. Step 6: Final answer
   x = 14,012.03