Finding the Fourth Proportional to 298,223.72, 411,548.58 and 164,086.76

Step by Step Solution

1. Step 1: Write the proportion equation
   298,223.72 : 411,548.58 = 164,086.76 : x
2. Step 2: Convert to fraction form
   298,223.72/411,548.58 = 164,086.76/x
3. Step 3: Cross multiply
   298,223.72x = 411,548.58 × 164,086.76
4. Step 4: Simplify right side
   298,223.72x = 67,529,673,074.80
5. Step 5: Solve for x
   x = 67,529,673,074.80/298,223.72
6. Step 6: Final answer
   x = 226,439.64