Finding the Fourth Proportional to 105,227.91, 145,262.31 and 67,039.82

Step by Step Solution

1. Step 1: Write the proportion equation
   105,227.91 : 145,262.31 = 67,039.82 : x
2. Step 2: Convert to fraction form
   105,227.91/145,262.31 = 67,039.82/x
3. Step 3: Cross multiply
   105,227.91x = 145,262.31 × 67,039.82
4. Step 4: Simplify right side
   105,227.91x = 9,738,358,388.87
5. Step 5: Solve for x
   x = 9,738,358,388.87/105,227.91
6. Step 6: Final answer
   x = 92,545.39