Finding the Fourth Proportional to 142,612.88, 196,826.52 and 82,171.84

Step by Step Solution

1. Step 1: Write the proportion equation
   142,612.88 : 196,826.52 = 82,171.84 : x
2. Step 2: Convert to fraction form
   142,612.88/196,826.52 = 82,171.84/x
3. Step 3: Cross multiply
   142,612.88x = 196,826.52 × 82,171.84
4. Step 4: Simplify right side
   142,612.88x = 16,173,597,309.20
5. Step 5: Solve for x
   x = 16,173,597,309.20/142,612.88
6. Step 6: Final answer
   x = 113,409.09