Finding the Fourth Proportional to 261,196.30, 391,942.08 and 111,422.44

Step by Step Solution

1. Step 1: Write the proportion equation
   261,196.30 : 391,942.08 = 111,422.44 : x
2. Step 2: Convert to fraction form
   261,196.30/391,942.08 = 111,422.44/x
3. Step 3: Cross multiply
   261,196.30x = 391,942.08 × 111,422.44
4. Step 4: Simplify right side
   261,196.30x = 43,671,142,892.28
5. Step 5: Solve for x
   x = 43,671,142,892.28/261,196.30
6. Step 6: Final answer
   x = 167,196.64