Finding the Fourth Proportional to 404,716.50, 607,104.18 and 155,398.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,716.50 : 607,104.18 = 155,398.50 : x
2. Step 2: Convert to fraction form
   404,716.50/607,104.18 = 155,398.50/x
3. Step 3: Cross multiply
   404,716.50x = 607,104.18 × 155,398.50
4. Step 4: Simplify right side
   404,716.50x = 94,343,078,915.73
5. Step 5: Solve for x
   x = 94,343,078,915.73/404,716.50
6. Step 6: Final answer
   x = 233,109.05