Finding the Fourth Proportional to 52,355.72, 72,249.32 and 28,481.78

Step by Step Solution

1. Step 1: Write the proportion equation
   52,355.72 : 72,249.32 = 28,481.78 : x
2. Step 2: Convert to fraction form
   52,355.72/72,249.32 = 28,481.78/x
3. Step 3: Cross multiply
   52,355.72x = 72,249.32 × 28,481.78
4. Step 4: Simplify right side
   52,355.72x = 2,057,789,489.22
5. Step 5: Solve for x
   x = 2,057,789,489.22/52,355.72
6. Step 6: Final answer
   x = 39,304.00