Finding the Fourth Proportional to 300,542.06, 414,784.86 and 171,512.30

Step by Step Solution

1. Step 1: Write the proportion equation
   300,542.06 : 414,784.86 = 171,512.30 : x
2. Step 2: Convert to fraction form
   300,542.06/414,784.86 = 171,512.30/x
3. Step 3: Cross multiply
   300,542.06x = 414,784.86 × 171,512.30
4. Step 4: Simplify right side
   300,542.06x = 71,140,705,343.78
5. Step 5: Solve for x
   x = 71,140,705,343.78/300,542.06
6. Step 6: Final answer
   x = 236,707.98