Finding the Fourth Proportional to 209,401.82, 288,993.24 and 123,361.59

Step by Step Solution

1. Step 1: Write the proportion equation
   209,401.82 : 288,993.24 = 123,361.59 : x
2. Step 2: Convert to fraction form
   209,401.82/288,993.24 = 123,361.59/x
3. Step 3: Cross multiply
   209,401.82x = 288,993.24 × 123,361.59
4. Step 4: Simplify right side
   209,401.82x = 35,650,665,585.65
5. Step 5: Solve for x
   x = 35,650,665,585.65/209,401.82
6. Step 6: Final answer
   x = 170,250.03