Finding the Fourth Proportional to 3,842.26, 5,731.55 and 3,728.96

Step by Step Solution

1. Step 1: Write the proportion equation
   3,842.26 : 5,731.55 = 3,728.96 : x
2. Step 2: Convert to fraction form
   3,842.26/5,731.55 = 3,728.96/x
3. Step 3: Cross multiply
   3,842.26x = 5,731.55 × 3,728.96
4. Step 4: Simplify right side
   3,842.26x = 21,372,673.39
5. Step 5: Solve for x
   x = 21,372,673.39/3,842.26
6. Step 6: Final answer
   x = 5,562.53