Finding the Fourth Proportional to 298,109.06, 411,369.31 and 162,140.23

Step by Step Solution

1. Step 1: Write the proportion equation
   298,109.06 : 411,369.31 = 162,140.23 : x
2. Step 2: Convert to fraction form
   298,109.06/411,369.31 = 162,140.23/x
3. Step 3: Cross multiply
   298,109.06x = 411,369.31 × 162,140.23
4. Step 4: Simplify right side
   298,109.06x = 66,699,514,538.34
5. Step 5: Solve for x
   x = 66,699,514,538.34/298,109.06
6. Step 6: Final answer
   x = 223,741.99