Finding the Fourth Proportional to 8,429.97, 12,647.46 and 2,507.06

Step by Step Solution

1. Step 1: Write the proportion equation
   8,429.97 : 12,647.46 = 2,507.06 : x
2. Step 2: Convert to fraction form
   8,429.97/12,647.46 = 2,507.06/x
3. Step 3: Cross multiply
   8,429.97x = 12,647.46 × 2,507.06
4. Step 4: Simplify right side
   8,429.97x = 31,707,877.83
5. Step 5: Solve for x
   x = 31,707,877.83/8,429.97
6. Step 6: Final answer
   x = 3,761.33