Finding the Fourth Proportional to 80,142.24, 110,630.31 and 49,942.47

Step by Step Solution

1. Step 1: Write the proportion equation
   80,142.24 : 110,630.31 = 49,942.47 : x
2. Step 2: Convert to fraction form
   80,142.24/110,630.31 = 49,942.47/x
3. Step 3: Cross multiply
   80,142.24x = 110,630.31 × 49,942.47
4. Step 4: Simplify right side
   80,142.24x = 5,525,150,938.27
5. Step 5: Solve for x
   x = 5,525,150,938.27/80,142.24
6. Step 6: Final answer
   x = 68,941.81