Finding the Fourth Proportional to 404,643.69, 607,043.58 and 155,306.25

Step by Step Solution

1. Step 1: Write the proportion equation
   404,643.69 : 607,043.58 = 155,306.25 : x
2. Step 2: Convert to fraction form
   404,643.69/607,043.58 = 155,306.25/x
3. Step 3: Cross multiply
   404,643.69x = 607,043.58 × 155,306.25
4. Step 4: Simplify right side
   404,643.69x = 94,277,661,996.38
5. Step 5: Solve for x
   x = 94,277,661,996.38/404,643.69
6. Step 6: Final answer
   x = 232,989.33