Finding the Fourth Proportional to 52,277.94, 72,143.42 and 28,404.70

Step by Step Solution

1. Step 1: Write the proportion equation
   52,277.94 : 72,143.42 = 28,404.70 : x
2. Step 2: Convert to fraction form
   52,277.94/72,143.42 = 28,404.70/x
3. Step 3: Cross multiply
   52,277.94x = 72,143.42 × 28,404.70
4. Step 4: Simplify right side
   52,277.94x = 2,049,211,879.69
5. Step 5: Solve for x
   x = 2,049,211,879.69/52,277.94
6. Step 6: Final answer
   x = 39,198.41