Finding the Fourth Proportional to 143,137.52, 197,538.72 and 82,719.23

Step by Step Solution

1. Step 1: Write the proportion equation
   143,137.52 : 197,538.72 = 82,719.23 : x
2. Step 2: Convert to fraction form
   143,137.52/197,538.72 = 82,719.23/x
3. Step 3: Cross multiply
   143,137.52x = 197,538.72 × 82,719.23
4. Step 4: Simplify right side
   143,137.52x = 16,340,250,813.59
5. Step 5: Solve for x
   x = 16,340,250,813.59/143,137.52
6. Step 6: Final answer
   x = 114,157.71