Finding the Fourth Proportional to 228,571.42, 342,879.69 and 78,791.98

Step by Step Solution

1. Step 1: Write the proportion equation
   228,571.42 : 342,879.69 = 78,791.98 : x
2. Step 2: Convert to fraction form
   228,571.42/342,879.69 = 78,791.98/x
3. Step 3: Cross multiply
   228,571.42x = 342,879.69 × 78,791.98
4. Step 4: Simplify right side
   228,571.42x = 27,016,169,676.89
5. Step 5: Solve for x
   x = 27,016,169,676.89/228,571.42
6. Step 6: Final answer
   x = 118,195.75