Finding the Fourth Proportional to 105,860.43, 146,087.15 and 58,112.73

Step by Step Solution

1. Step 1: Write the proportion equation
   105,860.43 : 146,087.15 = 58,112.73 : x
2. Step 2: Convert to fraction form
   105,860.43/146,087.15 = 58,112.73/x
3. Step 3: Cross multiply
   105,860.43x = 146,087.15 × 58,112.73
4. Step 4: Simplify right side
   105,860.43x = 8,489,522,813.86
5. Step 5: Solve for x
   x = 8,489,522,813.86/105,860.43
6. Step 6: Final answer
   x = 80,195.43