Finding the Fourth Proportional to 105,757.50, 158,620.64 and 30,857.54

Step by Step Solution

1. Step 1: Write the proportion equation
   105,757.50 : 158,620.64 = 30,857.54 : x
2. Step 2: Convert to fraction form
   105,757.50/158,620.64 = 30,857.54/x
3. Step 3: Cross multiply
   105,757.50x = 158,620.64 × 30,857.54
4. Step 4: Simplify right side
   105,757.50x = 4,894,642,985.89
5. Step 5: Solve for x
   x = 4,894,642,985.89/105,757.50
6. Step 6: Final answer
   x = 46,281.76