Finding the Fourth Proportional to 356,627.50, 492,196.37 and 220,705.25

Step by Step Solution

1. Step 1: Write the proportion equation
   356,627.50 : 492,196.37 = 220,705.25 : x
2. Step 2: Convert to fraction form
   356,627.50/492,196.37 = 220,705.25/x
3. Step 3: Cross multiply
   356,627.50x = 492,196.37 × 220,705.25
4. Step 4: Simplify right side
   356,627.50x = 108,630,319,325.43
5. Step 5: Solve for x
   x = 108,630,319,325.43/356,627.50
6. Step 6: Final answer
   x = 304,604.44