Finding the Fourth Proportional to 12,404.61, 18,608.09 and 4,081.23

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.61 : 18,608.09 = 4,081.23 : x
2. Step 2: Convert to fraction form
   12,404.61/18,608.09 = 4,081.23/x
3. Step 3: Cross multiply
   12,404.61x = 18,608.09 × 4,081.23
4. Step 4: Simplify right side
   12,404.61x = 75,943,874.74
5. Step 5: Solve for x
   x = 75,943,874.74/12,404.61
6. Step 6: Final answer
   x = 6,122.23