Finding the Fourth Proportional to 3,964.14, 5,467.50 and 3,728.70

Step by Step Solution

1. Step 1: Write the proportion equation
   3,964.14 : 5,467.50 = 3,728.70 : x
2. Step 2: Convert to fraction form
   3,964.14/5,467.50 = 3,728.70/x
3. Step 3: Cross multiply
   3,964.14x = 5,467.50 × 3,728.70
4. Step 4: Simplify right side
   3,964.14x = 20,386,667.25
5. Step 5: Solve for x
   x = 20,386,667.25/3,964.14
6. Step 6: Final answer
   x = 5,142.77