Finding the Fourth Proportional to 222,397.40, 333,771.42 and 82,196.12

Step by Step Solution

1. Step 1: Write the proportion equation
   222,397.40 : 333,771.42 = 82,196.12 : x
2. Step 2: Convert to fraction form
   222,397.40/333,771.42 = 82,196.12/x
3. Step 3: Cross multiply
   222,397.40x = 333,771.42 × 82,196.12
4. Step 4: Simplify right side
   222,397.40x = 27,434,715,690.89
5. Step 5: Solve for x
   x = 27,434,715,690.89/222,397.40
6. Step 6: Final answer
   x = 123,358.98