Finding the Fourth Proportional to 18,404.10, 25,396.41 and 10,020.42

Step by Step Solution

1. Step 1: Write the proportion equation
   18,404.10 : 25,396.41 = 10,020.42 : x
2. Step 2: Convert to fraction form
   18,404.10/25,396.41 = 10,020.42/x
3. Step 3: Cross multiply
   18,404.10x = 25,396.41 × 10,020.42
4. Step 4: Simplify right side
   18,404.10x = 254,482,694.69
5. Step 5: Solve for x
   x = 254,482,694.69/18,404.10
6. Step 6: Final answer
   x = 13,827.50