Finding the Fourth Proportional to 51,062.88, 70,466.40 and 28,706.88

Step by Step Solution

1. Step 1: Write the proportion equation
   51,062.88 : 70,466.40 = 28,706.88 : x
2. Step 2: Convert to fraction form
   51,062.88/70,466.40 = 28,706.88/x
3. Step 3: Cross multiply
   51,062.88x = 70,466.40 × 28,706.88
4. Step 4: Simplify right side
   51,062.88x = 2,022,870,488.83
5. Step 5: Solve for x
   x = 2,022,870,488.83/51,062.88
6. Step 6: Final answer
   x = 39,615.28