Finding the Fourth Proportional to 404,718.50, 607,107.72 and 155,400.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,718.50 : 607,107.72 = 155,400.50 : x
2. Step 2: Convert to fraction form
   404,718.50/607,107.72 = 155,400.50/x
3. Step 3: Cross multiply
   404,718.50x = 607,107.72 × 155,400.50
4. Step 4: Simplify right side
   404,718.50x = 94,344,843,241.86
5. Step 5: Solve for x
   x = 94,344,843,241.86/404,718.50
6. Step 6: Final answer
   x = 233,112.26