Finding the Fourth Proportional to 51,269.43, 70,751.90 and 28,298.72

Step by Step Solution

1. Step 1: Write the proportion equation
   51,269.43 : 70,751.90 = 28,298.72 : x
2. Step 2: Convert to fraction form
   51,269.43/70,751.90 = 28,298.72/x
3. Step 3: Cross multiply
   51,269.43x = 70,751.90 × 28,298.72
4. Step 4: Simplify right side
   51,269.43x = 2,002,188,207.57
5. Step 5: Solve for x
   x = 2,002,188,207.57/51,269.43
6. Step 6: Final answer
   x = 39,052.28