Finding the Fourth Proportional to 7,443.88, 10,272.10 and 4,086.04

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.88 : 10,272.10 = 4,086.04 : x
2. Step 2: Convert to fraction form
   7,443.88/10,272.10 = 4,086.04/x
3. Step 3: Cross multiply
   7,443.88x = 10,272.10 × 4,086.04
4. Step 4: Simplify right side
   7,443.88x = 41,972,211.48
5. Step 5: Solve for x
   x = 41,972,211.48/7,443.88
6. Step 6: Final answer
   x = 5,638.49