Finding the Fourth Proportional to 294,856.72, 406,580.72 and 199,197.32

Step by Step Solution

1. Step 1: Write the proportion equation
   294,856.72 : 406,580.72 = 199,197.32 : x
2. Step 2: Convert to fraction form
   294,856.72/406,580.72 = 199,197.32/x
3. Step 3: Cross multiply
   294,856.72x = 406,580.72 × 199,197.32
4. Step 4: Simplify right side
   294,856.72x = 80,989,789,787.67
5. Step 5: Solve for x
   x = 80,989,789,787.67/294,856.72
6. Step 6: Final answer
   x = 274,675.07