Finding the Fourth Proportional to 300,317.69, 414,530.67 and 173,078.03

Step by Step Solution

1. Step 1: Write the proportion equation
   300,317.69 : 414,530.67 = 173,078.03 : x
2. Step 2: Convert to fraction form
   300,317.69/414,530.67 = 173,078.03/x
3. Step 3: Cross multiply
   300,317.69x = 414,530.67 × 173,078.03
4. Step 4: Simplify right side
   300,317.69x = 71,746,149,665.53
5. Step 5: Solve for x
   x = 71,746,149,665.53/300,317.69
6. Step 6: Final answer
   x = 238,900.85