Finding the Fourth Proportional to 52,145.92, 71,960.70 and 28,272.52

Step by Step Solution

1. Step 1: Write the proportion equation
   52,145.92 : 71,960.70 = 28,272.52 : x
2. Step 2: Convert to fraction form
   52,145.92/71,960.70 = 28,272.52/x
3. Step 3: Cross multiply
   52,145.92x = 71,960.70 × 28,272.52
4. Step 4: Simplify right side
   52,145.92x = 2,034,510,329.96
5. Step 5: Solve for x
   x = 2,034,510,329.96/52,145.92
6. Step 6: Final answer
   x = 39,015.71