Finding the Fourth Proportional to 131,306.69, 181,200.84 and 73,945.78

Step by Step Solution

1. Step 1: Write the proportion equation
   131,306.69 : 181,200.84 = 73,945.78 : x
2. Step 2: Convert to fraction form
   131,306.69/181,200.84 = 73,945.78/x
3. Step 3: Cross multiply
   131,306.69x = 181,200.84 × 73,945.78
4. Step 4: Simplify right side
   131,306.69x = 13,399,036,544.45
5. Step 5: Solve for x
   x = 13,399,036,544.45/131,306.69
6. Step 6: Final answer
   x = 102,043.83