Finding the Fourth Proportional to 223,659, 308,649.42 and 123,057

Step by Step Solution

1. Step 1: Write the proportion equation
   223,659 : 308,649.42 = 123,057 : x
2. Step 2: Convert to fraction form
   223,659/308,649.42 = 123,057/x
3. Step 3: Cross multiply
   223,659x = 308,649.42 × 123,057
4. Step 4: Simplify right side
   223,659x = 37,981,471,676.94
5. Step 5: Solve for x
   x = 37,981,471,676.94/223,659
6. Step 6: Final answer
   x = 169,818.66