Finding the Fourth Proportional to 105,760.82, 145,973.40 and 82,745.24

Step by Step Solution

1. Step 1: Write the proportion equation
   105,760.82 : 145,973.40 = 82,745.24 : x
2. Step 2: Convert to fraction form
   105,760.82/145,973.40 = 82,745.24/x
3. Step 3: Cross multiply
   105,760.82x = 145,973.40 × 82,745.24
4. Step 4: Simplify right side
   105,760.82x = 12,078,604,016.62
5. Step 5: Solve for x
   x = 12,078,604,016.62/105,760.82
6. Step 6: Final answer
   x = 114,206.79