Finding the Fourth Proportional to 51,357.28, 70,871.71 and 28,696.46

Step by Step Solution

1. Step 1: Write the proportion equation
   51,357.28 : 70,871.71 = 28,696.46 : x
2. Step 2: Convert to fraction form
   51,357.28/70,871.71 = 28,696.46/x
3. Step 3: Cross multiply
   51,357.28x = 70,871.71 × 28,696.46
4. Step 4: Simplify right side
   51,357.28x = 2,033,766,693.31
5. Step 5: Solve for x
   x = 2,033,766,693.31/51,357.28
6. Step 6: Final answer
   x = 39,600.36