Finding the Fourth Proportional to 404,064.36, 606,164.58 and 123,516

Step by Step Solution

1. Step 1: Write the proportion equation
   404,064.36 : 606,164.58 = 123,516 : x
2. Step 2: Convert to fraction form
   404,064.36/606,164.58 = 123,516/x
3. Step 3: Cross multiply
   404,064.36x = 606,164.58 × 123,516
4. Step 4: Simplify right side
   404,064.36x = 74,871,024,263.28
5. Step 5: Solve for x
   x = 74,871,024,263.28/404,064.36
6. Step 6: Final answer
   x = 185,294.80