Finding the Fourth Proportional to 11,010.33, 16,513.07 and 3,989.25

Step by Step Solution

1. Step 1: Write the proportion equation
   11,010.33 : 16,513.07 = 3,989.25 : x
2. Step 2: Convert to fraction form
   11,010.33/16,513.07 = 3,989.25/x
3. Step 3: Cross multiply
   11,010.33x = 16,513.07 × 3,989.25
4. Step 4: Simplify right side
   11,010.33x = 65,874,744.55
5. Step 5: Solve for x
   x = 65,874,744.55/11,010.33
6. Step 6: Final answer
   x = 5,982.99