Finding the Fourth Proportional to 12,443.50, 18,664.78 and 3,083.54

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.50 : 18,664.78 = 3,083.54 : x
2. Step 2: Convert to fraction form
   12,443.50/18,664.78 = 3,083.54/x
3. Step 3: Cross multiply
   12,443.50x = 18,664.78 × 3,083.54
4. Step 4: Simplify right side
   12,443.50x = 57,553,580.30
5. Step 5: Solve for x
   x = 57,553,580.30/12,443.50
6. Step 6: Final answer
   x = 4,625.19