Finding the Fourth Proportional to 298,957.56, 412,510.69 and 171,630.42

Step by Step Solution

1. Step 1: Write the proportion equation
   298,957.56 : 412,510.69 = 171,630.42 : x
2. Step 2: Convert to fraction form
   298,957.56/412,510.69 = 171,630.42/x
3. Step 3: Cross multiply
   298,957.56x = 412,510.69 × 171,630.42
4. Step 4: Simplify right side
   298,957.56x = 70,799,382,979.19
5. Step 5: Solve for x
   x = 70,799,382,979.19/298,957.56
6. Step 6: Final answer
   x = 236,820.85