Finding the Fourth Proportional to 298,147.98, 411,451.72 and 162,189.56

Step by Step Solution

1. Step 1: Write the proportion equation
   298,147.98 : 411,451.72 = 162,189.56 : x
2. Step 2: Convert to fraction form
   298,147.98/411,451.72 = 162,189.56/x
3. Step 3: Cross multiply
   298,147.98x = 411,451.72 × 162,189.56
4. Step 4: Simplify right side
   298,147.98x = 66,733,173,428.04
5. Step 5: Solve for x
   x = 66,733,173,428.04/298,147.98
6. Step 6: Final answer
   x = 223,825.68