Finding the Fourth Proportional to 404,054.45, 605,984.47 and 123,574.13

Step by Step Solution

1. Step 1: Write the proportion equation
   404,054.45 : 605,984.47 = 123,574.13 : x
2. Step 2: Convert to fraction form
   404,054.45/605,984.47 = 123,574.13/x
3. Step 3: Cross multiply
   404,054.45x = 605,984.47 × 123,574.13
4. Step 4: Simplify right side
   404,054.45x = 74,884,003,673.76
5. Step 5: Solve for x
   x = 74,884,003,673.76/404,054.45
6. Step 6: Final answer
   x = 185,331.47