Finding the Fourth Proportional to 4,140.72, 5,719.14 and 3,019.86

Step by Step Solution

1. Step 1: Write the proportion equation
   4,140.72 : 5,719.14 = 3,019.86 : x
2. Step 2: Convert to fraction form
   4,140.72/5,719.14 = 3,019.86/x
3. Step 3: Cross multiply
   4,140.72x = 5,719.14 × 3,019.86
4. Step 4: Simplify right side
   4,140.72x = 17,271,002.12
5. Step 5: Solve for x
   x = 17,271,002.12/4,140.72
6. Step 6: Final answer
   x = 4,171.01