Finding the Fourth Proportional to 50,028.27, 69,047.54 and 28,819.86

Step by Step Solution

1. Step 1: Write the proportion equation
   50,028.27 : 69,047.54 = 28,819.86 : x
2. Step 2: Convert to fraction form
   50,028.27/69,047.54 = 28,819.86/x
3. Step 3: Cross multiply
   50,028.27x = 69,047.54 × 28,819.86
4. Step 4: Simplify right side
   50,028.27x = 1,989,940,436.14
5. Step 5: Solve for x
   x = 1,989,940,436.14/50,028.27
6. Step 6: Final answer
   x = 39,776.32