Finding the Fourth Proportional to 12,073.59, 18,109.17 and 3,309.39

Step by Step Solution

1. Step 1: Write the proportion equation
   12,073.59 : 18,109.17 = 3,309.39 : x
2. Step 2: Convert to fraction form
   12,073.59/18,109.17 = 3,309.39/x
3. Step 3: Cross multiply
   12,073.59x = 18,109.17 × 3,309.39
4. Step 4: Simplify right side
   12,073.59x = 59,930,306.11
5. Step 5: Solve for x
   x = 59,930,306.11/12,073.59
6. Step 6: Final answer
   x = 4,963.75