Finding the Fourth Proportional to 300,112.92, 414,109.72 and 172,763.88

Step by Step Solution

1. Step 1: Write the proportion equation
   300,112.92 : 414,109.72 = 172,763.88 : x
2. Step 2: Convert to fraction form
   300,112.92/414,109.72 = 172,763.88/x
3. Step 3: Cross multiply
   300,112.92x = 414,109.72 × 172,763.88
4. Step 4: Simplify right side
   300,112.92x = 71,543,201,972.91
5. Step 5: Solve for x
   x = 71,543,201,972.91/300,112.92
6. Step 6: Final answer
   x = 238,387.61