Finding the Fourth Proportional to 3,871.54, 5,821.32 and 3,567.07

Step by Step Solution

1. Step 1: Write the proportion equation
   3,871.54 : 5,821.32 = 3,567.07 : x
2. Step 2: Convert to fraction form
   3,871.54/5,821.32 = 3,567.07/x
3. Step 3: Cross multiply
   3,871.54x = 5,821.32 × 3,567.07
4. Step 4: Simplify right side
   3,871.54x = 20,765,076.59
5. Step 5: Solve for x
   x = 20,765,076.59/3,871.54
6. Step 6: Final answer
   x = 5,363.52