Finding the Fourth Proportional to 447,014.72, 616,871.59 and 243,063.86

Step by Step Solution

1. Step 1: Write the proportion equation
   447,014.72 : 616,871.59 = 243,063.86 : x
2. Step 2: Convert to fraction form
   447,014.72/616,871.59 = 243,063.86/x
3. Step 3: Cross multiply
   447,014.72x = 616,871.59 × 243,063.86
4. Step 4: Simplify right side
   447,014.72x = 149,939,188,574.42
5. Step 5: Solve for x
   x = 149,939,188,574.42/447,014.72
6. Step 6: Final answer
   x = 335,423.38