Finding the Fourth Proportional to 404,103.49, 606,133.24 and 123,620.74

Step by Step Solution

1. Step 1: Write the proportion equation
   404,103.49 : 606,133.24 = 123,620.74 : x
2. Step 2: Convert to fraction form
   404,103.49/606,133.24 = 123,620.74/x
3. Step 3: Cross multiply
   404,103.49x = 606,133.24 × 123,620.74
4. Step 4: Simplify right side
   404,103.49x = 74,930,639,667.40
5. Step 5: Solve for x
   x = 74,930,639,667.40/404,103.49
6. Step 6: Final answer
   x = 185,424.38