Finding the Fourth Proportional to 298,123.56, 411,406.98 and 162,154.56

Step by Step Solution

1. Step 1: Write the proportion equation
   298,123.56 : 411,406.98 = 162,154.56 : x
2. Step 2: Convert to fraction form
   298,123.56/411,406.98 = 162,154.56/x
3. Step 3: Cross multiply
   298,123.56x = 411,406.98 × 162,154.56
4. Step 4: Simplify right side
   298,123.56x = 66,711,517,822.83
5. Step 5: Solve for x
   x = 66,711,517,822.83/298,123.56
6. Step 6: Final answer
   x = 223,771.37