Finding the Fourth Proportional to 105,955.98, 146,221.83 and 58,212.42

Step by Step Solution

1. Step 1: Write the proportion equation
   105,955.98 : 146,221.83 = 58,212.42 : x
2. Step 2: Convert to fraction form
   105,955.98/146,221.83 = 58,212.42/x
3. Step 3: Cross multiply
   105,955.98x = 146,221.83 × 58,212.42
4. Step 4: Simplify right side
   105,955.98x = 8,511,926,581.13
5. Step 5: Solve for x
   x = 8,511,926,581.13/105,955.98
6. Step 6: Final answer
   x = 80,334.56