Finding the Fourth Proportional to 12,443.47, 18,664.98 and 3,083.51

Step by Step Solution

1. Step 1: Write the proportion equation
   12,443.47 : 18,664.98 = 3,083.51 : x
2. Step 2: Convert to fraction form
   12,443.47/18,664.98 = 3,083.51/x
3. Step 3: Cross multiply
   12,443.47x = 18,664.98 × 3,083.51
4. Step 4: Simplify right side
   12,443.47x = 57,553,637.06
5. Step 5: Solve for x
   x = 57,553,637.06/12,443.47
6. Step 6: Final answer
   x = 4,625.21