Finding the Fourth Proportional to 105,912.87, 146,159.59 and 58,166.22

Step by Step Solution

1. Step 1: Write the proportion equation
   105,912.87 : 146,159.59 = 58,166.22 : x
2. Step 2: Convert to fraction form
   105,912.87/146,159.59 = 58,166.22/x
3. Step 3: Cross multiply
   105,912.87x = 146,159.59 × 58,166.22
4. Step 4: Simplify right side
   105,912.87x = 8,501,550,867.05
5. Step 5: Solve for x
   x = 8,501,550,867.05/105,912.87
6. Step 6: Final answer
   x = 80,269.29