Finding the Fourth Proportional to 7,208.72, 10,809.72 and 3,745.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,208.72 : 10,809.72 = 3,745.04 : x
2. Step 2: Convert to fraction form
   7,208.72/10,809.72 = 3,745.04/x
3. Step 3: Cross multiply
   7,208.72x = 10,809.72 × 3,745.04
4. Step 4: Simplify right side
   7,208.72x = 40,482,833.79
5. Step 5: Solve for x
   x = 40,482,833.79/7,208.72
6. Step 6: Final answer
   x = 5,615.81