Finding the Fourth Proportional to 50,929.32, 70,278.60 and 28,569

Step by Step Solution

1. Step 1: Write the proportion equation
   50,929.32 : 70,278.60 = 28,569 : x
2. Step 2: Convert to fraction form
   50,929.32/70,278.60 = 28,569/x
3. Step 3: Cross multiply
   50,929.32x = 70,278.60 × 28,569
4. Step 4: Simplify right side
   50,929.32x = 2,007,789,323.40
5. Step 5: Solve for x
   x = 2,007,789,323.40/50,929.32
6. Step 6: Final answer
   x = 39,423.05