Finding the Fourth Proportional to 200,673.18, 301,059.59 and 80,738.10

Step by Step Solution

1. Step 1: Write the proportion equation
   200,673.18 : 301,059.59 = 80,738.10 : x
2. Step 2: Convert to fraction form
   200,673.18/301,059.59 = 80,738.10/x
3. Step 3: Cross multiply
   200,673.18x = 301,059.59 × 80,738.10
4. Step 4: Simplify right side
   200,673.18x = 24,306,978,879.69
5. Step 5: Solve for x
   x = 24,306,978,879.69/200,673.18
6. Step 6: Final answer
   x = 121,127.19