Finding the Fourth Proportional to 50,929.05, 70,281 and 28,266.72

Step by Step Solution

1. Step 1: Write the proportion equation
   50,929.05 : 70,281 = 28,266.72 : x
2. Step 2: Convert to fraction form
   50,929.05/70,281 = 28,266.72/x
3. Step 3: Cross multiply
   50,929.05x = 70,281 × 28,266.72
4. Step 4: Simplify right side
   50,929.05x = 1,986,613,348.32
5. Step 5: Solve for x
   x = 1,986,613,348.32/50,929.05
6. Step 6: Final answer
   x = 39,007.47