Finding the Fourth Proportional to 3,996.89, 5,510.81 and 3,286.25

Step by Step Solution

1. Step 1: Write the proportion equation
   3,996.89 : 5,510.81 = 3,286.25 : x
2. Step 2: Convert to fraction form
   3,996.89/5,510.81 = 3,286.25/x
3. Step 3: Cross multiply
   3,996.89x = 5,510.81 × 3,286.25
4. Step 4: Simplify right side
   3,996.89x = 18,109,882.93
5. Step 5: Solve for x
   x = 18,109,882.93/3,996.89
6. Step 6: Final answer
   x = 4,530.99