Finding the Fourth Proportional to 404,590.50, 606,914.91 and 155,272.50

Step by Step Solution

1. Step 1: Write the proportion equation
   404,590.50 : 606,914.91 = 155,272.50 : x
2. Step 2: Convert to fraction form
   404,590.50/606,914.91 = 155,272.50/x
3. Step 3: Cross multiply
   404,590.50x = 606,914.91 × 155,272.50
4. Step 4: Simplify right side
   404,590.50x = 94,237,195,362.98
5. Step 5: Solve for x
   x = 94,237,195,362.98/404,590.50
6. Step 6: Final answer
   x = 232,919.94