Finding the Fourth Proportional to 141,067.58, 194,673.27 and 80,639.55

Step by Step Solution

1. Step 1: Write the proportion equation
   141,067.58 : 194,673.27 = 80,639.55 : x
2. Step 2: Convert to fraction form
   141,067.58/194,673.27 = 80,639.55/x
3. Step 3: Cross multiply
   141,067.58x = 194,673.27 × 80,639.55
4. Step 4: Simplify right side
   141,067.58x = 15,698,365,192.23
5. Step 5: Solve for x
   x = 15,698,365,192.23/141,067.58
6. Step 6: Final answer
   x = 111,282.59