Finding the Fourth Proportional to 181,219.29, 249,791.81 and 123,057.78

Step by Step Solution

1. Step 1: Write the proportion equation
   181,219.29 : 249,791.81 = 123,057.78 : x
2. Step 2: Convert to fraction form
   181,219.29/249,791.81 = 123,057.78/x
3. Step 3: Cross multiply
   181,219.29x = 249,791.81 × 123,057.78
4. Step 4: Simplify right side
   181,219.29x = 30,738,825,600.78
5. Step 5: Solve for x
   x = 30,738,825,600.78/181,219.29
6. Step 6: Final answer
   x = 169,622.26