Finding the Fourth Proportional to 143,841.69, 198,860.24 and 107,969.42

Step by Step Solution

1. Step 1: Write the proportion equation
   143,841.69 : 198,860.24 = 107,969.42 : x
2. Step 2: Convert to fraction form
   143,841.69/198,860.24 = 107,969.42/x
3. Step 3: Cross multiply
   143,841.69x = 198,860.24 × 107,969.42
4. Step 4: Simplify right side
   143,841.69x = 21,470,825,540.94
5. Step 5: Solve for x
   x = 21,470,825,540.94/143,841.69
6. Step 6: Final answer
   x = 149,267.06