Finding the Fourth Proportional to 52,277.69, 72,143.51 and 28,404.56

Step by Step Solution

1. Step 1: Write the proportion equation
   52,277.69 : 72,143.51 = 28,404.56 : x
2. Step 2: Convert to fraction form
   52,277.69/72,143.51 = 28,404.56/x
3. Step 3: Cross multiply
   52,277.69x = 72,143.51 × 28,404.56
4. Step 4: Simplify right side
   52,277.69x = 2,049,204,155.67
5. Step 5: Solve for x
   x = 2,049,204,155.67/52,277.69
6. Step 6: Final answer
   x = 39,198.45