Finding the Fourth Proportional to 80,945.99, 111,775.97 and 50,783.17

Step by Step Solution

1. Step 1: Write the proportion equation
   80,945.99 : 111,775.97 = 50,783.17 : x
2. Step 2: Convert to fraction form
   80,945.99/111,775.97 = 50,783.17/x
3. Step 3: Cross multiply
   80,945.99x = 111,775.97 × 50,783.17
4. Step 4: Simplify right side
   80,945.99x = 5,676,338,086.42
5. Step 5: Solve for x
   x = 5,676,338,086.42/80,945.99
6. Step 6: Final answer
   x = 70,125.01