Finding the Fourth Proportional to 7,443.64, 10,271.57 and 4,086.45

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.64 : 10,271.57 = 4,086.45 : x
2. Step 2: Convert to fraction form
   7,443.64/10,271.57 = 4,086.45/x
3. Step 3: Cross multiply
   7,443.64x = 10,271.57 × 4,086.45
4. Step 4: Simplify right side
   7,443.64x = 41,974,205.87
5. Step 5: Solve for x
   x = 41,974,205.87/7,443.64
6. Step 6: Final answer
   x = 5,638.94