Finding the Fourth Proportional to 18,608.50, 25,680.18 and 10,225

Step by Step Solution

1. Step 1: Write the proportion equation
   18,608.50 : 25,680.18 = 10,225 : x
2. Step 2: Convert to fraction form
   18,608.50/25,680.18 = 10,225/x
3. Step 3: Cross multiply
   18,608.50x = 25,680.18 × 10,225
4. Step 4: Simplify right side
   18,608.50x = 262,579,840.50
5. Step 5: Solve for x
   x = 262,579,840.50/18,608.50
6. Step 6: Final answer
   x = 14,110.75