Finding the Fourth Proportional to 12,282.98, 18,424.39 and 3,517.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,282.98 : 18,424.39 = 3,517.89 : x
2. Step 2: Convert to fraction form
   12,282.98/18,424.39 = 3,517.89/x
3. Step 3: Cross multiply
   12,282.98x = 18,424.39 × 3,517.89
4. Step 4: Simplify right side
   12,282.98x = 64,814,977.34
5. Step 5: Solve for x
   x = 64,814,977.34/12,282.98
6. Step 6: Final answer
   x = 5,276.81