Finding the Fourth Proportional to 298,287.57, 411,636.90 and 164,151.57

Step by Step Solution

1. Step 1: Write the proportion equation
   298,287.57 : 411,636.90 = 164,151.57 : x
2. Step 2: Convert to fraction form
   298,287.57/411,636.90 = 164,151.57/x
3. Step 3: Cross multiply
   298,287.57x = 411,636.90 × 164,151.57
4. Step 4: Simplify right side
   298,287.57x = 67,570,843,404.93
5. Step 5: Solve for x
   x = 67,570,843,404.93/298,287.57
6. Step 6: Final answer
   x = 226,529.20