Finding the Fourth Proportional to 105,757.50, 158,619.23 and 30,860.06

Step by Step Solution

1. Step 1: Write the proportion equation
   105,757.50 : 158,619.23 = 30,860.06 : x
2. Step 2: Convert to fraction form
   105,757.50/158,619.23 = 30,860.06/x
3. Step 3: Cross multiply
   105,757.50x = 158,619.23 × 30,860.06
4. Step 4: Simplify right side
   105,757.50x = 4,894,998,954.95
5. Step 5: Solve for x
   x = 4,894,998,954.95/105,757.50
6. Step 6: Final answer
   x = 46,285.12