Finding the Fourth Proportional to 18,406.62, 25,401.42 and 10,023.12

Step by Step Solution

1. Step 1: Write the proportion equation
   18,406.62 : 25,401.42 = 10,023.12 : x
2. Step 2: Convert to fraction form
   18,406.62/25,401.42 = 10,023.12/x
3. Step 3: Cross multiply
   18,406.62x = 25,401.42 × 10,023.12
4. Step 4: Simplify right side
   18,406.62x = 254,601,480.83
5. Step 5: Solve for x
   x = 254,601,480.83/18,406.62
6. Step 6: Final answer
   x = 13,832.06