Finding the Fourth Proportional to 50,760.72, 70,049.88 and 28,404.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,760.72 : 70,049.88 = 28,404.72 : x
2. Step 2: Convert to fraction form
   50,760.72/70,049.88 = 28,404.72/x
3. Step 3: Cross multiply
   50,760.72x = 70,049.88 × 28,404.72
4. Step 4: Simplify right side
   50,760.72x = 1,989,747,227.43
5. Step 5: Solve for x
   x = 1,989,747,227.43/50,760.72
6. Step 6: Final answer
   x = 39,198.56