Finding the Fourth Proportional to 7,443.28, 10,271.89 and 4,086.33

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.28 : 10,271.89 = 4,086.33 : x
2. Step 2: Convert to fraction form
   7,443.28/10,271.89 = 4,086.33/x
3. Step 3: Cross multiply
   7,443.28x = 10,271.89 × 4,086.33
4. Step 4: Simplify right side
   7,443.28x = 41,974,349.33
5. Step 5: Solve for x
   x = 41,974,349.33/7,443.28
6. Step 6: Final answer
   x = 5,639.23