Finding the Fourth Proportional to 7,141.27, 9,856.32 and 4,157.56

Step by Step Solution

1. Step 1: Write the proportion equation
   7,141.27 : 9,856.32 = 4,157.56 : x
2. Step 2: Convert to fraction form
   7,141.27/9,856.32 = 4,157.56/x
3. Step 3: Cross multiply
   7,141.27x = 9,856.32 × 4,157.56
4. Step 4: Simplify right side
   7,141.27x = 40,978,241.78
5. Step 5: Solve for x
   x = 40,978,241.78/7,141.27
6. Step 6: Final answer
   x = 5,738.23