Finding the Fourth Proportional to 7,081.28, 9,782.16 and 5,674.31

Step by Step Solution

1. Step 1: Write the proportion equation
   7,081.28 : 9,782.16 = 5,674.31 : x
2. Step 2: Convert to fraction form
   7,081.28/9,782.16 = 5,674.31/x
3. Step 3: Cross multiply
   7,081.28x = 9,782.16 × 5,674.31
4. Step 4: Simplify right side
   7,081.28x = 55,507,008.31
5. Step 5: Solve for x
   x = 55,507,008.31/7,081.28
6. Step 6: Final answer
   x = 7,838.56