Finding the Fourth Proportional to 7,071.45, 9,757.52 and 4,086.71

Step by Step Solution

1. Step 1: Write the proportion equation
   7,071.45 : 9,757.52 = 4,086.71 : x
2. Step 2: Convert to fraction form
   7,071.45/9,757.52 = 4,086.71/x
3. Step 3: Cross multiply
   7,071.45x = 9,757.52 × 4,086.71
4. Step 4: Simplify right side
   7,071.45x = 39,876,085.34
5. Step 5: Solve for x
   x = 39,876,085.34/7,071.45
6. Step 6: Final answer
   x = 5,639.03