Finding the Fourth Proportional to 141,907.36, 195,831 and 78,243.82

Step by Step Solution

1. Step 1: Write the proportion equation
   141,907.36 : 195,831 = 78,243.82 : x
2. Step 2: Convert to fraction form
   141,907.36/195,831 = 78,243.82/x
3. Step 3: Cross multiply
   141,907.36x = 195,831 × 78,243.82
4. Step 4: Simplify right side
   141,907.36x = 15,322,565,514.42
5. Step 5: Solve for x
   x = 15,322,565,514.42/141,907.36
6. Step 6: Final answer
   x = 107,975.83