Finding the Fourth Proportional to 404,730.01, 558,518.53 and 220,962.30

Step by Step Solution

1. Step 1: Write the proportion equation
   404,730.01 : 558,518.53 = 220,962.30 : x
2. Step 2: Convert to fraction form
   404,730.01/558,518.53 = 220,962.30/x
3. Step 3: Cross multiply
   404,730.01x = 558,518.53 × 220,962.30
4. Step 4: Simplify right side
   404,730.01x = 123,411,538,981.42
5. Step 5: Solve for x
   x = 123,411,538,981.42/404,730.01
6. Step 6: Final answer
   x = 304,923.12