Finding the Fourth Proportional to 105,959.98, 146,227.36 and 58,216.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,959.98 : 146,227.36 = 58,216.42 : x
2. Step 2: Convert to fraction form
   105,959.98/146,227.36 = 58,216.42/x
3. Step 3: Cross multiply
   105,959.98x = 146,227.36 × 58,216.42
4. Step 4: Simplify right side
   105,959.98x = 8,512,833,405.25
5. Step 5: Solve for x
   x = 8,512,833,405.25/105,959.98
6. Step 6: Final answer
   x = 80,340.08