Finding the Fourth Proportional to 143,145.36, 197,546.28 and 82,714

Step by Step Solution

1. Step 1: Write the proportion equation
   143,145.36 : 197,546.28 = 82,714 : x
2. Step 2: Convert to fraction form
   143,145.36/197,546.28 = 82,714/x
3. Step 3: Cross multiply
   143,145.36x = 197,546.28 × 82,714
4. Step 4: Simplify right side
   143,145.36x = 16,339,843,003.92
5. Step 5: Solve for x
   x = 16,339,843,003.92/143,145.36
6. Step 6: Final answer
   x = 114,148.60