Finding the Fourth Proportional to 298,641, 412,124.58 and 164,505

Step by Step Solution

1. Step 1: Write the proportion equation
   298,641 : 412,124.58 = 164,505 : x
2. Step 2: Convert to fraction form
   298,641/412,124.58 = 164,505/x
3. Step 3: Cross multiply
   298,641x = 412,124.58 × 164,505
4. Step 4: Simplify right side
   298,641x = 67,796,554,032.90
5. Step 5: Solve for x
   x = 67,796,554,032.90/298,641
6. Step 6: Final answer
   x = 227,016.90