Finding the Fourth Proportional to 52,711.92, 72,742.68 and 28,839

Step by Step Solution

1. Step 1: Write the proportion equation
   52,711.92 : 72,742.68 = 28,839 : x
2. Step 2: Convert to fraction form
   52,711.92/72,742.68 = 28,839/x
3. Step 3: Cross multiply
   52,711.92x = 72,742.68 × 28,839
4. Step 4: Simplify right side
   52,711.92x = 2,097,826,148.52
5. Step 5: Solve for x
   x = 2,097,826,148.52/52,711.92
6. Step 6: Final answer
   x = 39,797.95