Finding the Fourth Proportional to 143,089.40, 197,472.69 and 82,662.59

Step by Step Solution

1. Step 1: Write the proportion equation
   143,089.40 : 197,472.69 = 82,662.59 : x
2. Step 2: Convert to fraction form
   143,089.40/197,472.69 = 82,662.59/x
3. Step 3: Cross multiply
   143,089.40x = 197,472.69 × 82,662.59
4. Step 4: Simplify right side
   143,089.40x = 16,323,603,022.30
5. Step 5: Solve for x
   x = 16,323,603,022.30/143,089.40
6. Step 6: Final answer
   x = 114,079.75