Finding the Fourth Proportional to 296,870, 409,682.04 and 177,638

Step by Step Solution

1. Step 1: Write the proportion equation
   296,870 : 409,682.04 = 177,638 : x
2. Step 2: Convert to fraction form
   296,870/409,682.04 = 177,638/x
3. Step 3: Cross multiply
   296,870x = 409,682.04 × 177,638
4. Step 4: Simplify right side
   296,870x = 72,775,098,221.52
5. Step 5: Solve for x
   x = 72,775,098,221.52/296,870
6. Step 6: Final answer
   x = 245,141.30