Finding the Fourth Proportional to 105,907.83, 146,153.82 and 58,162.20

Step by Step Solution

1. Step 1: Write the proportion equation
   105,907.83 : 146,153.82 = 58,162.20 : x
2. Step 2: Convert to fraction form
   105,907.83/146,153.82 = 58,162.20/x
3. Step 3: Cross multiply
   105,907.83x = 146,153.82 × 58,162.20
4. Step 4: Simplify right side
   105,907.83x = 8,500,627,709.60
5. Step 5: Solve for x
   x = 8,500,627,709.60/105,907.83
6. Step 6: Final answer
   x = 80,264.39