Finding the Fourth Proportional to 300,349.62, 414,574.71 and 173,109.90

Step by Step Solution

1. Step 1: Write the proportion equation
   300,349.62 : 414,574.71 = 173,109.90 : x
2. Step 2: Convert to fraction form
   300,349.62/414,574.71 = 173,109.90/x
3. Step 3: Cross multiply
   300,349.62x = 414,574.71 × 173,109.90
4. Step 4: Simplify right side
   300,349.62x = 71,766,986,590.63
5. Step 5: Solve for x
   x = 71,766,986,590.63/300,349.62
6. Step 6: Final answer
   x = 238,944.82