Finding the Fourth Proportional to 142,578.41, 196,807.41 and 82,173.15

Step by Step Solution

1. Step 1: Write the proportion equation
   142,578.41 : 196,807.41 = 82,173.15 : x
2. Step 2: Convert to fraction form
   142,578.41/196,807.41 = 82,173.15/x
3. Step 3: Cross multiply
   142,578.41x = 196,807.41 × 82,173.15
4. Step 4: Simplify right side
   142,578.41x = 16,172,284,823.04
5. Step 5: Solve for x
   x = 16,172,284,823.04/142,578.41
6. Step 6: Final answer
   x = 113,427.31