Finding the Fourth Proportional to 3,823.40, 5,727.32 and 3,504.47

Step by Step Solution

1. Step 1: Write the proportion equation
   3,823.40 : 5,727.32 = 3,504.47 : x
2. Step 2: Convert to fraction form
   3,823.40/5,727.32 = 3,504.47/x
3. Step 3: Cross multiply
   3,823.40x = 5,727.32 × 3,504.47
4. Step 4: Simplify right side
   3,823.40x = 20,071,174.96
5. Step 5: Solve for x
   x = 20,071,174.96/3,823.40
6. Step 6: Final answer
   x = 5,249.56