Finding the Fourth Proportional to 438,400.50, 604,992.69 and 237,196.50

Step by Step Solution

1. Step 1: Write the proportion equation
   438,400.50 : 604,992.69 = 237,196.50 : x
2. Step 2: Convert to fraction form
   438,400.50/604,992.69 = 237,196.50/x
3. Step 3: Cross multiply
   438,400.50x = 604,992.69 × 237,196.50
4. Step 4: Simplify right side
   438,400.50x = 143,502,148,593.59
5. Step 5: Solve for x
   x = 143,502,148,593.59/438,400.50
6. Step 6: Final answer
   x = 327,331.17