Finding the Fourth Proportional to 80,259.57, 110,721.47 and 51,974.37

Step by Step Solution

1. Step 1: Write the proportion equation
   80,259.57 : 110,721.47 = 51,974.37 : x
2. Step 2: Convert to fraction form
   80,259.57/110,721.47 = 51,974.37/x
3. Step 3: Cross multiply
   80,259.57x = 110,721.47 × 51,974.37
4. Step 4: Simplify right side
   80,259.57x = 5,754,678,388.85
5. Step 5: Solve for x
   x = 5,754,678,388.85/80,259.57
6. Step 6: Final answer
   x = 71,700.84