Finding the Fourth Proportional to 18,605.13, 25,676.72 and 10,223.25

Step by Step Solution

1. Step 1: Write the proportion equation
   18,605.13 : 25,676.72 = 10,223.25 : x
2. Step 2: Convert to fraction form
   18,605.13/25,676.72 = 10,223.25/x
3. Step 3: Cross multiply
   18,605.13x = 25,676.72 × 10,223.25
4. Step 4: Simplify right side
   18,605.13x = 262,499,527.74
5. Step 5: Solve for x
   x = 262,499,527.74/18,605.13
6. Step 6: Final answer
   x = 14,108.99