Finding the Fourth Proportional to 42,456.72, 58,560.62 and 36,039.05

Step by Step Solution

1. Step 1: Write the proportion equation
   42,456.72 : 58,560.62 = 36,039.05 : x
2. Step 2: Convert to fraction form
   42,456.72/58,560.62 = 36,039.05/x
3. Step 3: Cross multiply
   42,456.72x = 58,560.62 × 36,039.05
4. Step 4: Simplify right side
   42,456.72x = 2,110,469,078.42
5. Step 5: Solve for x
   x = 2,110,469,078.42/42,456.72
6. Step 6: Final answer
   x = 49,708.72