Finding the Fourth Proportional to 333,016.32, 459,604.61 and 218,391.42

Step by Step Solution

1. Step 1: Write the proportion equation
   333,016.32 : 459,604.61 = 218,391.42 : x
2. Step 2: Convert to fraction form
   333,016.32/459,604.61 = 218,391.42/x
3. Step 3: Cross multiply
   333,016.32x = 459,604.61 × 218,391.42
4. Step 4: Simplify right side
   333,016.32x = 100,373,703,416.45
5. Step 5: Solve for x
   x = 100,373,703,416.45/333,016.32
6. Step 6: Final answer
   x = 301,407.76