Finding the Fourth Proportional to 406,789.56, 561,403.98 and 234,738.54

Step by Step Solution

1. Step 1: Write the proportion equation
   406,789.56 : 561,403.98 = 234,738.54 : x
2. Step 2: Convert to fraction form
   406,789.56/561,403.98 = 234,738.54/x
3. Step 3: Cross multiply
   406,789.56x = 561,403.98 × 234,738.54
4. Step 4: Simplify right side
   406,789.56x = 131,783,150,615.39
5. Step 5: Solve for x
   x = 131,783,150,615.39/406,789.56
6. Step 6: Final answer
   x = 323,959.03