Finding the Fourth Proportional to 404,725.50, 607,118.22 and 155,407.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,725.50 : 607,118.22 = 155,407.50 : x
2. Step 2: Convert to fraction form
   404,725.50/607,118.22 = 155,407.50/x
3. Step 3: Cross multiply
   404,725.50x = 607,118.22 × 155,407.50
4. Step 4: Simplify right side
   404,725.50x = 94,350,724,774.65
5. Step 5: Solve for x
   x = 94,350,724,774.65/404,725.50
6. Step 6: Final answer
   x = 233,122.76