Finding the Fourth Proportional to 7,443.14, 10,271.70 and 4,085.91

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.14 : 10,271.70 = 4,085.91 : x
2. Step 2: Convert to fraction form
   7,443.14/10,271.70 = 4,085.91/x
3. Step 3: Cross multiply
   7,443.14x = 10,271.70 × 4,085.91
4. Step 4: Simplify right side
   7,443.14x = 41,969,241.75
5. Step 5: Solve for x
   x = 41,969,241.75/7,443.14
6. Step 6: Final answer
   x = 5,638.65