Finding the Fourth Proportional to 51,758.46, 71,424.83 and 28,788.15

Step by Step Solution

1. Step 1: Write the proportion equation
   51,758.46 : 71,424.83 = 28,788.15 : x
2. Step 2: Convert to fraction form
   51,758.46/71,424.83 = 28,788.15/x
3. Step 3: Cross multiply
   51,758.46x = 71,424.83 × 28,788.15
4. Step 4: Simplify right side
   51,758.46x = 2,056,188,791.73
5. Step 5: Solve for x
   x = 2,056,188,791.73/51,758.46
6. Step 6: Final answer
   x = 39,726.62