Finding the Fourth Proportional to 18,784.86, 25,922.79 and 10,401.18

Step by Step Solution

1. Step 1: Write the proportion equation
   18,784.86 : 25,922.79 = 10,401.18 : x
2. Step 2: Convert to fraction form
   18,784.86/25,922.79 = 10,401.18/x
3. Step 3: Cross multiply
   18,784.86x = 25,922.79 × 10,401.18
4. Step 4: Simplify right side
   18,784.86x = 269,627,604.89
5. Step 5: Solve for x
   x = 269,627,604.89/18,784.86
6. Step 6: Final answer
   x = 14,353.45