Finding the Fourth Proportional to 300,687.63, 414,938.09 and 171,632.76

Step by Step Solution

1. Step 1: Write the proportion equation
   300,687.63 : 414,938.09 = 171,632.76 : x
2. Step 2: Convert to fraction form
   300,687.63/414,938.09 = 171,632.76/x
3. Step 3: Cross multiply
   300,687.63x = 414,938.09 × 171,632.76
4. Step 4: Simplify right side
   300,687.63x = 71,216,968,488.89
5. Step 5: Solve for x
   x = 71,216,968,488.89/300,687.63
6. Step 6: Final answer
   x = 236,847.02