Finding the Fourth Proportional to 80,969.60, 111,790.06 and 50,796.30

Step by Step Solution

1. Step 1: Write the proportion equation
   80,969.60 : 111,790.06 = 50,796.30 : x
2. Step 2: Convert to fraction form
   80,969.60/111,790.06 = 50,796.30/x
3. Step 3: Cross multiply
   80,969.60x = 111,790.06 × 50,796.30
4. Step 4: Simplify right side
   80,969.60x = 5,678,521,424.78
5. Step 5: Solve for x
   x = 5,678,521,424.78/80,969.60
6. Step 6: Final answer
   x = 70,131.52