Finding the Fourth Proportional to 5,132.32, 7,082.72 and 3,144

Step by Step Solution

1. Step 1: Write the proportion equation
   5,132.32 : 7,082.72 = 3,144 : x
2. Step 2: Convert to fraction form
   5,132.32/7,082.72 = 3,144/x
3. Step 3: Cross multiply
   5,132.32x = 7,082.72 × 3,144
4. Step 4: Simplify right side
   5,132.32x = 22,268,071.68
5. Step 5: Solve for x
   x = 22,268,071.68/5,132.32
6. Step 6: Final answer
   x = 4,338.79