Finding the Fourth Proportional to 50,874, 70,212.60 and 28,518

Step by Step Solution

1. Step 1: Write the proportion equation
   50,874 : 70,212.60 = 28,518 : x
2. Step 2: Convert to fraction form
   50,874/70,212.60 = 28,518/x
3. Step 3: Cross multiply
   50,874x = 70,212.60 × 28,518
4. Step 4: Simplify right side
   50,874x = 2,002,322,926.80
5. Step 5: Solve for x
   x = 2,002,322,926.80/50,874
6. Step 6: Final answer
   x = 39,358.47