Finding the Fourth Proportional to 263,155.86, 363,154.82 and 142,296.86

Step by Step Solution

1. Step 1: Write the proportion equation
   263,155.86 : 363,154.82 = 142,296.86 : x
2. Step 2: Convert to fraction form
   263,155.86/363,154.82 = 142,296.86/x
3. Step 3: Cross multiply
   263,155.86x = 363,154.82 × 142,296.86
4. Step 4: Simplify right side
   263,155.86x = 51,675,789,119.83
5. Step 5: Solve for x
   x = 51,675,789,119.83/263,155.86
6. Step 6: Final answer
   x = 196,369.52