Finding the Fourth Proportional to 12,400.29, 17,105.99 and 7,676.37

Step by Step Solution

1. Step 1: Write the proportion equation
   12,400.29 : 17,105.99 = 7,676.37 : x
2. Step 2: Convert to fraction form
   12,400.29/17,105.99 = 7,676.37/x
3. Step 3: Cross multiply
   12,400.29x = 17,105.99 × 7,676.37
4. Step 4: Simplify right side
   12,400.29x = 131,311,870.07
5. Step 5: Solve for x
   x = 131,311,870.07/12,400.29
6. Step 6: Final answer
   x = 10,589.42