Finding the Fourth Proportional to 105,878.39, 146,112.46 and 58,134.83

Step by Step Solution

1. Step 1: Write the proportion equation
   105,878.39 : 146,112.46 = 58,134.83 : x
2. Step 2: Convert to fraction form
   105,878.39/146,112.46 = 58,134.83/x
3. Step 3: Cross multiply
   105,878.39x = 146,112.46 × 58,134.83
4. Step 4: Simplify right side
   105,878.39x = 8,494,222,147.08
5. Step 5: Solve for x
   x = 8,494,222,147.08/105,878.39
6. Step 6: Final answer
   x = 80,226.22