Finding the Fourth Proportional to 50,876.18, 70,209.14 and 28,520.18

Step by Step Solution

1. Step 1: Write the proportion equation
   50,876.18 : 70,209.14 = 28,520.18 : x
2. Step 2: Convert to fraction form
   50,876.18/70,209.14 = 28,520.18/x
3. Step 3: Cross multiply
   50,876.18x = 70,209.14 × 28,520.18
4. Step 4: Simplify right side
   50,876.18x = 2,002,377,310.45
5. Step 5: Solve for x
   x = 2,002,377,310.45/50,876.18
6. Step 6: Final answer
   x = 39,357.85