Finding the Fourth Proportional to 80,698.68, 111,333.54 and 50,057.56

Step by Step Solution

1. Step 1: Write the proportion equation
   80,698.68 : 111,333.54 = 50,057.56 : x
2. Step 2: Convert to fraction form
   80,698.68/111,333.54 = 50,057.56/x
3. Step 3: Cross multiply
   80,698.68x = 111,333.54 × 50,057.56
4. Step 4: Simplify right side
   80,698.68x = 5,573,085,358.56
5. Step 5: Solve for x
   x = 5,573,085,358.56/80,698.68
6. Step 6: Final answer
   x = 69,060.43