Finding the Fourth Proportional to 80,273.69, 120,434.82 and 30,369.08

Step by Step Solution

1. Step 1: Write the proportion equation
   80,273.69 : 120,434.82 = 30,369.08 : x
2. Step 2: Convert to fraction form
   80,273.69/120,434.82 = 30,369.08/x
3. Step 3: Cross multiply
   80,273.69x = 120,434.82 × 30,369.08
4. Step 4: Simplify right side
   80,273.69x = 3,657,494,081.19
5. Step 5: Solve for x
   x = 3,657,494,081.19/80,273.69
6. Step 6: Final answer
   x = 45,562.80