Finding the Fourth Proportional to 142,613.21, 196,826.82 and 82,172.27

Step by Step Solution

1. Step 1: Write the proportion equation
   142,613.21 : 196,826.82 = 82,172.27 : x
2. Step 2: Convert to fraction form
   142,613.21/196,826.82 = 82,172.27/x
3. Step 3: Cross multiply
   142,613.21x = 196,826.82 × 82,172.27
4. Step 4: Simplify right side
   142,613.21x = 16,173,706,596.28
5. Step 5: Solve for x
   x = 16,173,706,596.28/142,613.21
6. Step 6: Final answer
   x = 113,409.60