Finding the Fourth Proportional to 3,988.50, 5,943.12 and 3,552.30

Step by Step Solution

1. Step 1: Write the proportion equation
   3,988.50 : 5,943.12 = 3,552.30 : x
2. Step 2: Convert to fraction form
   3,988.50/5,943.12 = 3,552.30/x
3. Step 3: Cross multiply
   3,988.50x = 5,943.12 × 3,552.30
4. Step 4: Simplify right side
   3,988.50x = 21,111,745.18
5. Step 5: Solve for x
   x = 21,111,745.18/3,988.50
6. Step 6: Final answer
   x = 5,293.15