Finding the Fourth Proportional to 298,300.71, 411,650.64 and 164,164.71

Step by Step Solution

1. Step 1: Write the proportion equation
   298,300.71 : 411,650.64 = 164,164.71 : x
2. Step 2: Convert to fraction form
   298,300.71/411,650.64 = 164,164.71/x
3. Step 3: Cross multiply
   298,300.71x = 411,650.64 × 164,164.71
4. Step 4: Simplify right side
   298,300.71x = 67,578,507,936.91
5. Step 5: Solve for x
   x = 67,578,507,936.91/298,300.71
6. Step 6: Final answer
   x = 226,544.91