Finding the Fourth Proportional to 50,930.50, 70,289.49 and 28,574.50

Step by Step Solution

1. Step 1: Write the proportion equation
   50,930.50 : 70,289.49 = 28,574.50 : x
2. Step 2: Convert to fraction form
   50,930.50/70,289.49 = 28,574.50/x
3. Step 3: Cross multiply
   50,930.50x = 70,289.49 × 28,574.50
4. Step 4: Simplify right side
   50,930.50x = 2,008,487,032.01
5. Step 5: Solve for x
   x = 2,008,487,032.01/50,930.50
6. Step 6: Final answer
   x = 39,435.84