Finding the Fourth Proportional to 50,758.72, 70,044.96 and 28,401.28

Step by Step Solution

1. Step 1: Write the proportion equation
   50,758.72 : 70,044.96 = 28,401.28 : x
2. Step 2: Convert to fraction form
   50,758.72/70,044.96 = 28,401.28/x
3. Step 3: Cross multiply
   50,758.72x = 70,044.96 × 28,401.28
4. Step 4: Simplify right side
   50,758.72x = 1,989,366,521.55
5. Step 5: Solve for x
   x = 1,989,366,521.55/50,758.72
6. Step 6: Final answer
   x = 39,192.61