Finding the Fourth Proportional to 16,679.45, 25,022.22 and 7,914.29

Step by Step Solution

1. Step 1: Write the proportion equation
   16,679.45 : 25,022.22 = 7,914.29 : x
2. Step 2: Convert to fraction form
   16,679.45/25,022.22 = 7,914.29/x
3. Step 3: Cross multiply
   16,679.45x = 25,022.22 × 7,914.29
4. Step 4: Simplify right side
   16,679.45x = 198,033,105.52
5. Step 5: Solve for x
   x = 198,033,105.52/16,679.45
6. Step 6: Final answer
   x = 11,872.88