Finding the Fourth Proportional to 105,856.55, 146,083.70 and 58,114.25

Step by Step Solution

1. Step 1: Write the proportion equation
   105,856.55 : 146,083.70 = 58,114.25 : x
2. Step 2: Convert to fraction form
   105,856.55/146,083.70 = 58,114.25/x
3. Step 3: Cross multiply
   105,856.55x = 146,083.70 × 58,114.25
4. Step 4: Simplify right side
   105,856.55x = 8,489,544,662.73
5. Step 5: Solve for x
   x = 8,489,544,662.73/105,856.55
6. Step 6: Final answer
   x = 80,198.58