Finding the Fourth Proportional to 298,391.82, 411,780.69 and 164,255.82

Step by Step Solution

1. Step 1: Write the proportion equation
   298,391.82 : 411,780.69 = 164,255.82 : x
2. Step 2: Convert to fraction form
   298,391.82/411,780.69 = 164,255.82/x
3. Step 3: Cross multiply
   298,391.82x = 411,780.69 × 164,255.82
4. Step 4: Simplify right side
   298,391.82x = 67,637,374,896.12
5. Step 5: Solve for x
   x = 67,637,374,896.12/298,391.82
6. Step 6: Final answer
   x = 226,673.02