Finding the Fourth Proportional to 12,404.04, 18,608.80 and 4,083.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.04 : 18,608.80 = 4,083.72 : x
2. Step 2: Convert to fraction form
   12,404.04/18,608.80 = 4,083.72/x
3. Step 3: Cross multiply
   12,404.04x = 18,608.80 × 4,083.72
4. Step 4: Simplify right side
   12,404.04x = 75,993,128.74
5. Step 5: Solve for x
   x = 75,993,128.74/12,404.04
6. Step 6: Final answer
   x = 6,126.48