Finding the Fourth Proportional to 80,598.96, 111,218.28 and 50,387.62

Step by Step Solution

1. Step 1: Write the proportion equation
   80,598.96 : 111,218.28 = 50,387.62 : x
2. Step 2: Convert to fraction form
   80,598.96/111,218.28 = 50,387.62/x
3. Step 3: Cross multiply
   80,598.96x = 111,218.28 × 50,387.62
4. Step 4: Simplify right side
   80,598.96x = 5,604,024,429.69
5. Step 5: Solve for x
   x = 5,604,024,429.69/80,598.96
6. Step 6: Final answer
   x = 69,529.74