Finding the Fourth Proportional to 105,766.22, 145,957.38 and 58,019.69

Step by Step Solution

1. Step 1: Write the proportion equation
   105,766.22 : 145,957.38 = 58,019.69 : x
2. Step 2: Convert to fraction form
   105,766.22/145,957.38 = 58,019.69/x
3. Step 3: Cross multiply
   105,766.22x = 145,957.38 × 58,019.69
4. Step 4: Simplify right side
   105,766.22x = 8,468,401,211.03
5. Step 5: Solve for x
   x = 8,468,401,211.03/105,766.22
6. Step 6: Final answer
   x = 80,067.17