Finding the Fourth Proportional to 89,521.38, 123,542.60 and 49,238.19

Step by Step Solution

1. Step 1: Write the proportion equation
   89,521.38 : 123,542.60 = 49,238.19 : x
2. Step 2: Convert to fraction form
   89,521.38/123,542.60 = 49,238.19/x
3. Step 3: Cross multiply
   89,521.38x = 123,542.60 × 49,238.19
4. Step 4: Simplify right side
   89,521.38x = 6,083,014,011.89
5. Step 5: Solve for x
   x = 6,083,014,011.89/89,521.38
6. Step 6: Final answer
   x = 67,950.40