Finding the Fourth Proportional to 212,904.27, 293,794.50 and 122,196.42

Step by Step Solution

1. Step 1: Write the proportion equation
   212,904.27 : 293,794.50 = 122,196.42 : x
2. Step 2: Convert to fraction form
   212,904.27/293,794.50 = 122,196.42/x
3. Step 3: Cross multiply
   212,904.27x = 293,794.50 × 122,196.42
4. Step 4: Simplify right side
   212,904.27x = 35,900,636,115.69
5. Step 5: Solve for x
   x = 35,900,636,115.69/212,904.27
6. Step 6: Final answer
   x = 168,623.37