Finding the Fourth Proportional to 414,530.06, 620,507.94 and 224,518.50

Step by Step Solution

1. Step 1: Write the proportion equation
   414,530.06 : 620,507.94 = 224,518.50 : x
2. Step 2: Convert to fraction form
   414,530.06/620,507.94 = 224,518.50/x
3. Step 3: Cross multiply
   414,530.06x = 620,507.94 × 224,518.50
4. Step 4: Simplify right side
   414,530.06x = 139,315,511,926.89
5. Step 5: Solve for x
   x = 139,315,511,926.89/414,530.06
6. Step 6: Final answer
   x = 336,080.61