Finding the Fourth Proportional to 8,272.47, 12,408.89 and 2,429.09

Step by Step Solution

1. Step 1: Write the proportion equation
   8,272.47 : 12,408.89 = 2,429.09 : x
2. Step 2: Convert to fraction form
   8,272.47/12,408.89 = 2,429.09/x
3. Step 3: Cross multiply
   8,272.47x = 12,408.89 × 2,429.09
4. Step 4: Simplify right side
   8,272.47x = 30,142,236.42
5. Step 5: Solve for x
   x = 30,142,236.42/8,272.47
6. Step 6: Final answer
   x = 3,643.68