Finding the Fourth Proportional to 10,570.50, 15,839.28 and 3,993.10

Step by Step Solution

1. Step 1: Write the proportion equation
   10,570.50 : 15,839.28 = 3,993.10 : x
2. Step 2: Convert to fraction form
   10,570.50/15,839.28 = 3,993.10/x
3. Step 3: Cross multiply
   10,570.50x = 15,839.28 × 3,993.10
4. Step 4: Simplify right side
   10,570.50x = 63,247,789.37
5. Step 5: Solve for x
   x = 63,247,789.37/10,570.50
6. Step 6: Final answer
   x = 5,983.42