Finding the Fourth Proportional to 12,626.72, 17,427.12 and 7,908.26

Step by Step Solution

1. Step 1: Write the proportion equation
   12,626.72 : 17,427.12 = 7,908.26 : x
2. Step 2: Convert to fraction form
   12,626.72/17,427.12 = 7,908.26/x
3. Step 3: Cross multiply
   12,626.72x = 17,427.12 × 7,908.26
4. Step 4: Simplify right side
   12,626.72x = 137,818,108.88
5. Step 5: Solve for x
   x = 137,818,108.88/12,626.72
6. Step 6: Final answer
   x = 10,914.80