Finding the Fourth Proportional to 12,404.10, 18,608.20 and 5,747.25

Step by Step Solution

1. Step 1: Write the proportion equation
   12,404.10 : 18,608.20 = 5,747.25 : x
2. Step 2: Convert to fraction form
   12,404.10/18,608.20 = 5,747.25/x
3. Step 3: Cross multiply
   12,404.10x = 18,608.20 × 5,747.25
4. Step 4: Simplify right side
   12,404.10x = 106,945,963.08
5. Step 5: Solve for x
   x = 106,945,963.08/12,404.10
6. Step 6: Final answer
   x = 8,621.82