Finding the Fourth Proportional to 298,635, 412,116.30 and 164,499

Step by Step Solution

1. Step 1: Write the proportion equation
   298,635 : 412,116.30 = 164,499 : x
2. Step 2: Convert to fraction form
   298,635/412,116.30 = 164,499/x
3. Step 3: Cross multiply
   298,635x = 412,116.30 × 164,499
4. Step 4: Simplify right side
   298,635x = 67,792,719,233.70
5. Step 5: Solve for x
   x = 67,792,719,233.70/298,635
6. Step 6: Final answer
   x = 227,008.62