Finding the Fourth Proportional to 298,635.12, 412,116.50 and 164,499.12

Step by Step Solution

1. Step 1: Write the proportion equation
   298,635.12 : 412,116.50 = 164,499.12 : x
2. Step 2: Convert to fraction form
   298,635.12/412,116.50 = 164,499.12/x
3. Step 3: Cross multiply
   298,635.12x = 412,116.50 × 164,499.12
4. Step 4: Simplify right side
   298,635.12x = 67,792,801,587.48
5. Step 5: Solve for x
   x = 67,792,801,587.48/298,635.12
6. Step 6: Final answer
   x = 227,008.80