Finding the Fourth Proportional to 25,648.67, 38,469.15 and 8,116.22

Step by Step Solution

1. Step 1: Write the proportion equation
   25,648.67 : 38,469.15 = 8,116.22 : x
2. Step 2: Convert to fraction form
   25,648.67/38,469.15 = 8,116.22/x
3. Step 3: Cross multiply
   25,648.67x = 38,469.15 × 8,116.22
4. Step 4: Simplify right side
   25,648.67x = 312,224,084.61
5. Step 5: Solve for x
   x = 312,224,084.61/25,648.67
6. Step 6: Final answer
   x = 12,173.11