Finding the Fourth Proportional to 7,443.38, 10,272.24 and 4,086.17

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.38 : 10,272.24 = 4,086.17 : x
2. Step 2: Convert to fraction form
   7,443.38/10,272.24 = 4,086.17/x
3. Step 3: Cross multiply
   7,443.38x = 10,272.24 × 4,086.17
4. Step 4: Simplify right side
   7,443.38x = 41,974,144.60
5. Step 5: Solve for x
   x = 41,974,144.60/7,443.38
6. Step 6: Final answer
   x = 5,639.12