Finding the Fourth Proportional to 143,582.67, 198,140.72 and 79,919.10

Step by Step Solution

1. Step 1: Write the proportion equation
   143,582.67 : 198,140.72 = 79,919.10 : x
2. Step 2: Convert to fraction form
   143,582.67/198,140.72 = 79,919.10/x
3. Step 3: Cross multiply
   143,582.67x = 198,140.72 × 79,919.10
4. Step 4: Simplify right side
   143,582.67x = 15,835,227,616.16
5. Step 5: Solve for x
   x = 15,835,227,616.16/143,582.67
6. Step 6: Final answer
   x = 110,286.48