Finding the Fourth Proportional to 447,895.89, 618,096.96 and 243,947.61

Step by Step Solution

1. Step 1: Write the proportion equation
   447,895.89 : 618,096.96 = 243,947.61 : x
2. Step 2: Convert to fraction form
   447,895.89/618,096.96 = 243,947.61/x
3. Step 3: Cross multiply
   447,895.89x = 618,096.96 × 243,947.61
4. Step 4: Simplify right side
   447,895.89x = 150,783,276,140.27
5. Step 5: Solve for x
   x = 150,783,276,140.27/447,895.89
6. Step 6: Final answer
   x = 336,648.05