Finding the Fourth Proportional to 105,913.38, 146,160.29 and 58,166.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,913.38 : 146,160.29 = 58,166.73 : x
2. Step 2: Convert to fraction form
   105,913.38/146,160.29 = 58,166.73/x
3. Step 3: Cross multiply
   105,913.38x = 146,160.29 × 58,166.73
4. Step 4: Simplify right side
   105,913.38x = 8,501,665,834.32
5. Step 5: Solve for x
   x = 8,501,665,834.32/105,913.38
6. Step 6: Final answer
   x = 80,269.99