Finding the Fourth Proportional to 52,277.49, 72,142.05 and 28,404.54

Step by Step Solution

1. Step 1: Write the proportion equation
   52,277.49 : 72,142.05 = 28,404.54 : x
2. Step 2: Convert to fraction form
   52,277.49/72,142.05 = 28,404.54/x
3. Step 3: Cross multiply
   52,277.49x = 72,142.05 × 28,404.54
4. Step 4: Simplify right side
   52,277.49x = 2,049,161,744.91
5. Step 5: Solve for x
   x = 2,049,161,744.91/52,277.49
6. Step 6: Final answer
   x = 39,197.78