Finding the Fourth Proportional to 263,300.72, 363,353.49 and 142,441.65

Step by Step Solution

1. Step 1: Write the proportion equation
   263,300.72 : 363,353.49 = 142,441.65 : x
2. Step 2: Convert to fraction form
   263,300.72/363,353.49 = 142,441.65/x
3. Step 3: Cross multiply
   263,300.72x = 363,353.49 × 142,441.65
4. Step 4: Simplify right side
   263,300.72x = 51,756,670,648.86
5. Step 5: Solve for x
   x = 51,756,670,648.86/263,300.72
6. Step 6: Final answer
   x = 196,568.67