Finding the Fourth Proportional to 335,333.30, 504,016.15 and 221,868.12

Step by Step Solution

1. Step 1: Write the proportion equation
   335,333.30 : 504,016.15 = 221,868.12 : x
2. Step 2: Convert to fraction form
   335,333.30/504,016.15 = 221,868.12/x
3. Step 3: Cross multiply
   335,333.30x = 504,016.15 × 221,868.12
4. Step 4: Simplify right side
   335,333.30x = 111,825,115,650.14
5. Step 5: Solve for x
   x = 111,825,115,650.14/335,333.30
6. Step 6: Final answer
   x = 333,474.53