Finding the Fourth Proportional to 298,644, 412,128.72 and 164,508

Step by Step Solution

1. Step 1: Write the proportion equation
   298,644 : 412,128.72 = 164,508 : x
2. Step 2: Convert to fraction form
   298,644/412,128.72 = 164,508/x
3. Step 3: Cross multiply
   298,644x = 412,128.72 × 164,508
4. Step 4: Simplify right side
   298,644x = 67,798,471,469.76
5. Step 5: Solve for x
   x = 67,798,471,469.76/298,644
6. Step 6: Final answer
   x = 227,021.04