Finding the Fourth Proportional to 7,443.48, 10,271.58 and 4,086

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.48 : 10,271.58 = 4,086 : x
2. Step 2: Convert to fraction form
   7,443.48/10,271.58 = 4,086/x
3. Step 3: Cross multiply
   7,443.48x = 10,271.58 × 4,086
4. Step 4: Simplify right side
   7,443.48x = 41,969,675.88
5. Step 5: Solve for x
   x = 41,969,675.88/7,443.48
6. Step 6: Final answer
   x = 5,638.45