Finding the Fourth Proportional to 80,945.58, 121,434.69 and 34,198.38

Step by Step Solution

1. Step 1: Write the proportion equation
   80,945.58 : 121,434.69 = 34,198.38 : x
2. Step 2: Convert to fraction form
   80,945.58/121,434.69 = 34,198.38/x
3. Step 3: Cross multiply
   80,945.58x = 121,434.69 × 34,198.38
4. Step 4: Simplify right side
   80,945.58x = 4,152,869,673.80
5. Step 5: Solve for x
   x = 4,152,869,673.80/80,945.58
6. Step 6: Final answer
   x = 51,304.46