Finding the Fourth Proportional to 12,626.40, 17,425.67 and 9,434.16

Step by Step Solution

1. Step 1: Write the proportion equation
   12,626.40 : 17,425.67 = 9,434.16 : x
2. Step 2: Convert to fraction form
   12,626.40/17,425.67 = 9,434.16/x
3. Step 3: Cross multiply
   12,626.40x = 17,425.67 × 9,434.16
4. Step 4: Simplify right side
   12,626.40x = 164,396,558.89
5. Step 5: Solve for x
   x = 164,396,558.89/12,626.40
6. Step 6: Final answer
   x = 13,020.07