Finding the Fourth Proportional to 7,091.28, 10,628.48 and 3,969.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,091.28 : 10,628.48 = 3,969.52 : x
2. Step 2: Convert to fraction form
   7,091.28/10,628.48 = 3,969.52/x
3. Step 3: Cross multiply
   7,091.28x = 10,628.48 × 3,969.52
4. Step 4: Simplify right side
   7,091.28x = 42,189,963.93
5. Step 5: Solve for x
   x = 42,189,963.93/7,091.28
6. Step 6: Final answer
   x = 5,949.56