Finding the Fourth Proportional to 298,623, 412,099.74 and 164,487

Step by Step Solution

1. Step 1: Write the proportion equation
   298,623 : 412,099.74 = 164,487 : x
2. Step 2: Convert to fraction form
   298,623/412,099.74 = 164,487/x
3. Step 3: Cross multiply
   298,623x = 412,099.74 × 164,487
4. Step 4: Simplify right side
   298,623x = 67,785,049,933.38
5. Step 5: Solve for x
   x = 67,785,049,933.38/298,623
6. Step 6: Final answer
   x = 226,992.06