Finding the Fourth Proportional to 404,104.74, 606,135.12 and 123,621.98

Step by Step Solution

1. Step 1: Write the proportion equation
   404,104.74 : 606,135.12 = 123,621.98 : x
2. Step 2: Convert to fraction form
   404,104.74/606,135.12 = 123,621.98/x
3. Step 3: Cross multiply
   404,104.74x = 606,135.12 × 123,621.98
4. Step 4: Simplify right side
   404,104.74x = 74,931,623,681.94
5. Step 5: Solve for x
   x = 74,931,623,681.94/404,104.74
6. Step 6: Final answer
   x = 185,426.24