Finding the Fourth Proportional to 298,282.50, 411,630.66 and 164,146.50

Step by Step Solution

1. Step 1: Write the proportion equation
   298,282.50 : 411,630.66 = 164,146.50 : x
2. Step 2: Convert to fraction form
   298,282.50/411,630.66 = 164,146.50/x
3. Step 3: Cross multiply
   298,282.50x = 411,630.66 × 164,146.50
4. Step 4: Simplify right side
   298,282.50x = 67,567,732,131.69
5. Step 5: Solve for x
   x = 67,567,732,131.69/298,282.50
6. Step 6: Final answer
   x = 226,522.62