Finding the Fourth Proportional to 298,629.78, 412,109.04 and 164,493.78

Step by Step Solution

1. Step 1: Write the proportion equation
   298,629.78 : 412,109.04 = 164,493.78 : x
2. Step 2: Convert to fraction form
   298,629.78/412,109.04 = 164,493.78/x
3. Step 3: Cross multiply
   298,629.78x = 412,109.04 × 164,493.78
4. Step 4: Simplify right side
   298,629.78x = 67,789,373,761.77
5. Step 5: Solve for x
   x = 67,789,373,761.77/298,629.78
6. Step 6: Final answer
   x = 227,001.39