Finding the Fourth Proportional to 142,651.59, 196,858.83 and 82,221.75

Step by Step Solution

1. Step 1: Write the proportion equation
   142,651.59 : 196,858.83 = 82,221.75 : x
2. Step 2: Convert to fraction form
   142,651.59/196,858.83 = 82,221.75/x
3. Step 3: Cross multiply
   142,651.59x = 196,858.83 × 82,221.75
4. Step 4: Simplify right side
   142,651.59x = 16,186,077,505.55
5. Step 5: Solve for x
   x = 16,186,077,505.55/142,651.59
6. Step 6: Final answer
   x = 113,465.81