Finding the Fourth Proportional to 51,856, 71,561.28 and 28,304

Step by Step Solution

1. Step 1: Write the proportion equation
   51,856 : 71,561.28 = 28,304 : x
2. Step 2: Convert to fraction form
   51,856/71,561.28 = 28,304/x
3. Step 3: Cross multiply
   51,856x = 71,561.28 × 28,304
4. Step 4: Simplify right side
   51,856x = 2,025,470,469.12
5. Step 5: Solve for x
   x = 2,025,470,469.12/51,856
6. Step 6: Final answer
   x = 39,059.52