Finding the Fourth Proportional to 142,569.17, 196,789.28 and 82,180.18

Step by Step Solution

1. Step 1: Write the proportion equation
   142,569.17 : 196,789.28 = 82,180.18 : x
2. Step 2: Convert to fraction form
   142,569.17/196,789.28 = 82,180.18/x
3. Step 3: Cross multiply
   142,569.17x = 196,789.28 × 82,180.18
4. Step 4: Simplify right side
   142,569.17x = 16,172,178,452.47
5. Step 5: Solve for x
   x = 16,172,178,452.47/142,569.17
6. Step 6: Final answer
   x = 113,433.91