Finding the Fourth Proportional to 20,626.82, 30,914.82 and 8,134.28

Step by Step Solution

1. Step 1: Write the proportion equation
   20,626.82 : 30,914.82 = 8,134.28 : x
2. Step 2: Convert to fraction form
   20,626.82/30,914.82 = 8,134.28/x
3. Step 3: Cross multiply
   20,626.82x = 30,914.82 × 8,134.28
4. Step 4: Simplify right side
   20,626.82x = 251,469,909.82
5. Step 5: Solve for x
   x = 251,469,909.82/20,626.82
6. Step 6: Final answer
   x = 12,191.40