Finding the Fourth Proportional to 42,524.73, 58,609.89 and 31,170.15

Step by Step Solution

1. Step 1: Write the proportion equation
   42,524.73 : 58,609.89 = 31,170.15 : x
2. Step 2: Convert to fraction form
   42,524.73/58,609.89 = 31,170.15/x
3. Step 3: Cross multiply
   42,524.73x = 58,609.89 × 31,170.15
4. Step 4: Simplify right side
   42,524.73x = 1,826,879,062.78
5. Step 5: Solve for x
   x = 1,826,879,062.78/42,524.73
6. Step 6: Final answer
   x = 42,960.39