Finding the Fourth Proportional to 105,760.50, 158,625.12 and 30,860.55

Step by Step Solution

1. Step 1: Write the proportion equation
   105,760.50 : 158,625.12 = 30,860.55 : x
2. Step 2: Convert to fraction form
   105,760.50/158,625.12 = 30,860.55/x
3. Step 3: Cross multiply
   105,760.50x = 158,625.12 × 30,860.55
4. Step 4: Simplify right side
   105,760.50x = 4,895,258,447.02
5. Step 5: Solve for x
   x = 4,895,258,447.02/105,760.50
6. Step 6: Final answer
   x = 46,286.26