Finding the Fourth Proportional to 50,076.93, 69,109.50 and 28,857.57

Step by Step Solution

1. Step 1: Write the proportion equation
   50,076.93 : 69,109.50 = 28,857.57 : x
2. Step 2: Convert to fraction form
   50,076.93/69,109.50 = 28,857.57/x
3. Step 3: Cross multiply
   50,076.93x = 69,109.50 × 28,857.57
4. Step 4: Simplify right side
   50,076.93x = 1,994,332,082.97
5. Step 5: Solve for x
   x = 1,994,332,082.97/50,076.93
6. Step 6: Final answer
   x = 39,825.36