Finding the Fourth Proportional to 142,758.72, 197,006.94 and 82,328.49

Step by Step Solution

1. Step 1: Write the proportion equation
   142,758.72 : 197,006.94 = 82,328.49 : x
2. Step 2: Convert to fraction form
   142,758.72/197,006.94 = 82,328.49/x
3. Step 3: Cross multiply
   142,758.72x = 197,006.94 × 82,328.49
4. Step 4: Simplify right side
   142,758.72x = 16,219,283,889.72
5. Step 5: Solve for x
   x = 16,219,283,889.72/142,758.72
6. Step 6: Final answer
   x = 113,613.26