Finding the Fourth Proportional to 89,936.72, 124,113.68 and 49,650.50

Step by Step Solution

1. Step 1: Write the proportion equation
   89,936.72 : 124,113.68 = 49,650.50 : x
2. Step 2: Convert to fraction form
   89,936.72/124,113.68 = 49,650.50/x
3. Step 3: Cross multiply
   89,936.72x = 124,113.68 × 49,650.50
4. Step 4: Simplify right side
   89,936.72x = 6,162,305,400.02
5. Step 5: Solve for x
   x = 6,162,305,400.02/89,936.72
6. Step 6: Final answer
   x = 68,518.24