Finding the Fourth Proportional to 18,402, 25,394.82 and 10,018.56

Step by Step Solution

1. Step 1: Write the proportion equation
   18,402 : 25,394.82 = 10,018.56 : x
2. Step 2: Convert to fraction form
   18,402/25,394.82 = 10,018.56/x
3. Step 3: Cross multiply
   18,402x = 25,394.82 × 10,018.56
4. Step 4: Simplify right side
   18,402x = 254,419,527.86
5. Step 5: Solve for x
   x = 254,419,527.86/18,402
6. Step 6: Final answer
   x = 13,825.65