Finding the Fourth Proportional to 142,475.20, 196,598.69 and 82,065.50

Step by Step Solution

1. Step 1: Write the proportion equation
   142,475.20 : 196,598.69 = 82,065.50 : x
2. Step 2: Convert to fraction form
   142,475.20/196,598.69 = 82,065.50/x
3. Step 3: Cross multiply
   142,475.20x = 196,598.69 × 82,065.50
4. Step 4: Simplify right side
   142,475.20x = 16,133,971,013.35
5. Step 5: Solve for x
   x = 16,133,971,013.35/142,475.20
6. Step 6: Final answer
   x = 113,240.55