Finding the Fourth Proportional to 143,745, 198,350.90 and 82,488.04

Step by Step Solution

1. Step 1: Write the proportion equation
   143,745 : 198,350.90 = 82,488.04 : x
2. Step 2: Convert to fraction form
   143,745/198,350.90 = 82,488.04/x
3. Step 3: Cross multiply
   143,745x = 198,350.90 × 82,488.04
4. Step 4: Simplify right side
   143,745x = 16,361,576,973.24
5. Step 5: Solve for x
   x = 16,361,576,973.24/143,745
6. Step 6: Final answer
   x = 113,823.62