Finding the Fourth Proportional to 20,725.67, 31,064.15 and 9,608.96

Step by Step Solution

1. Step 1: Write the proportion equation
   20,725.67 : 31,064.15 = 9,608.96 : x
2. Step 2: Convert to fraction form
   20,725.67/31,064.15 = 9,608.96/x
3. Step 3: Cross multiply
   20,725.67x = 31,064.15 × 9,608.96
4. Step 4: Simplify right side
   20,725.67x = 298,494,174.78
5. Step 5: Solve for x
   x = 298,494,174.78/20,725.67
6. Step 6: Final answer
   x = 14,402.15