Finding the Fourth Proportional to 298,613.78, 412,086.96 and 164,477.78

Step by Step Solution

1. Step 1: Write the proportion equation
   298,613.78 : 412,086.96 = 164,477.78 : x
2. Step 2: Convert to fraction form
   298,613.78/412,086.96 = 164,477.78/x
3. Step 3: Cross multiply
   298,613.78x = 412,086.96 × 164,477.78
4. Step 4: Simplify right side
   298,613.78x = 67,779,148,347.75
5. Step 5: Solve for x
   x = 67,779,148,347.75/298,613.78
6. Step 6: Final answer
   x = 226,979.31