Finding the Fourth Proportional to 7,443.30, 10,271.80 and 4,086.26

Step by Step Solution

1. Step 1: Write the proportion equation
   7,443.30 : 10,271.80 = 4,086.26 : x
2. Step 2: Convert to fraction form
   7,443.30/10,271.80 = 4,086.26/x
3. Step 3: Cross multiply
   7,443.30x = 10,271.80 × 4,086.26
4. Step 4: Simplify right side
   7,443.30x = 41,973,245.47
5. Step 5: Solve for x
   x = 41,973,245.47/7,443.30
6. Step 6: Final answer
   x = 5,639.06