Finding the Fourth Proportional to 608,169.24, 839,406.78 and 353,667.24

Step by Step Solution

1. Step 1: Write the proportion equation
   608,169.24 : 839,406.78 = 353,667.24 : x
2. Step 2: Convert to fraction form
   608,169.24/839,406.78 = 353,667.24/x
3. Step 3: Cross multiply
   608,169.24x = 839,406.78 × 353,667.24
4. Step 4: Simplify right side
   608,169.24x = 296,870,679,119.89
5. Step 5: Solve for x
   x = 296,870,679,119.89/608,169.24
6. Step 6: Final answer
   x = 488,138.27