Finding the Fourth Proportional to 5,741.72, 7,921.59 and 3,223.48

Step by Step Solution

1. Step 1: Write the proportion equation
   5,741.72 : 7,921.59 = 3,223.48 : x
2. Step 2: Convert to fraction form
   5,741.72/7,921.59 = 3,223.48/x
3. Step 3: Cross multiply
   5,741.72x = 7,921.59 × 3,223.48
4. Step 4: Simplify right side
   5,741.72x = 25,535,086.93
5. Step 5: Solve for x
   x = 25,535,086.93/5,741.72
6. Step 6: Final answer
   x = 4,447.29