Finding the Fourth Proportional to 294,855.72, 406,579.34 and 199,196.32

Step by Step Solution

1. Step 1: Write the proportion equation
   294,855.72 : 406,579.34 = 199,196.32 : x
2. Step 2: Convert to fraction form
   294,855.72/406,579.34 = 199,196.32/x
3. Step 3: Cross multiply
   294,855.72x = 406,579.34 × 199,196.32
4. Step 4: Simplify right side
   294,855.72x = 80,989,108,316.03
5. Step 5: Solve for x
   x = 80,989,108,316.03/294,855.72
6. Step 6: Final answer
   x = 274,673.69