Finding the Fourth Proportional to 142,960.40, 197,281.55 and 82,529

Step by Step Solution

1. Step 1: Write the proportion equation
   142,960.40 : 197,281.55 = 82,529 : x
2. Step 2: Convert to fraction form
   142,960.40/197,281.55 = 82,529/x
3. Step 3: Cross multiply
   142,960.40x = 197,281.55 × 82,529
4. Step 4: Simplify right side
   142,960.40x = 16,281,448,627.31
5. Step 5: Solve for x
   x = 16,281,448,627.31/142,960.40
6. Step 6: Final answer
   x = 113,887.82