Finding the Fourth Proportional to 105,811.67, 146,020.02 and 58,068.02

Step by Step Solution

1. Step 1: Write the proportion equation
   105,811.67 : 146,020.02 = 58,068.02 : x
2. Step 2: Convert to fraction form
   105,811.67/146,020.02 = 58,068.02/x
3. Step 3: Cross multiply
   105,811.67x = 146,020.02 × 58,068.02
4. Step 4: Simplify right side
   105,811.67x = 8,479,093,441.76
5. Step 5: Solve for x
   x = 8,479,093,441.76/105,811.67
6. Step 6: Final answer
   x = 80,133.82