Finding the Fourth Proportional to 105,821.37, 146,028.42 and 60,506.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,821.37 : 146,028.42 = 60,506.73 : x
2. Step 2: Convert to fraction form
   105,821.37/146,028.42 = 60,506.73/x
3. Step 3: Cross multiply
   105,821.37x = 146,028.42 × 60,506.73
4. Step 4: Simplify right side
   105,821.37x = 8,835,702,181.27
5. Step 5: Solve for x
   x = 8,835,702,181.27/105,821.37
6. Step 6: Final answer
   x = 83,496.39