Finding the Fourth Proportional to 603,667.56, 905,682.42 and 243,653.19

Step by Step Solution

1. Step 1: Write the proportion equation
   603,667.56 : 905,682.42 = 243,653.19 : x
2. Step 2: Convert to fraction form
   603,667.56/905,682.42 = 243,653.19/x
3. Step 3: Cross multiply
   603,667.56x = 905,682.42 × 243,653.19
4. Step 4: Simplify right side
   603,667.56x = 220,672,410,759.92
5. Step 5: Solve for x
   x = 220,672,410,759.92/603,667.56
6. Step 6: Final answer
   x = 365,552.87