Finding the Fourth Proportional to 4,728.18, 7,095.69 and 3,171.18

Step by Step Solution

1. Step 1: Write the proportion equation
   4,728.18 : 7,095.69 = 3,171.18 : x
2. Step 2: Convert to fraction form
   4,728.18/7,095.69 = 3,171.18/x
3. Step 3: Cross multiply
   4,728.18x = 7,095.69 × 3,171.18
4. Step 4: Simplify right side
   4,728.18x = 22,501,710.21
5. Step 5: Solve for x
   x = 22,501,710.21/4,728.18
6. Step 6: Final answer
   x = 4,759.06