Finding the Fourth Proportional to 50,110.71, 69,158.60 and 28,890.73

Step by Step Solution

1. Step 1: Write the proportion equation
   50,110.71 : 69,158.60 = 28,890.73 : x
2. Step 2: Convert to fraction form
   50,110.71/69,158.60 = 28,890.73/x
3. Step 3: Cross multiply
   50,110.71x = 69,158.60 × 28,890.73
4. Step 4: Simplify right side
   50,110.71x = 1,998,042,439.78
5. Step 5: Solve for x
   x = 1,998,042,439.78/50,110.71
6. Step 6: Final answer
   x = 39,872.56