Finding the Fourth Proportional to 89,520.72, 123,540.57 and 49,236.52

Step by Step Solution

1. Step 1: Write the proportion equation
   89,520.72 : 123,540.57 = 49,236.52 : x
2. Step 2: Convert to fraction form
   89,520.72/123,540.57 = 49,236.52/x
3. Step 3: Cross multiply
   89,520.72x = 123,540.57 × 49,236.52
4. Step 4: Simplify right side
   89,520.72x = 6,082,707,745.62
5. Step 5: Solve for x
   x = 6,082,707,745.62/89,520.72
6. Step 6: Final answer
   x = 67,947.48