Finding the Fourth Proportional to 444,196.50, 613,005.80 and 242,992.50

Step by Step Solution

1. Step 1: Write the proportion equation
   444,196.50 : 613,005.80 = 242,992.50 : x
2. Step 2: Convert to fraction form
   444,196.50/613,005.80 = 242,992.50/x
3. Step 3: Cross multiply
   444,196.50x = 613,005.80 × 242,992.50
4. Step 4: Simplify right side
   444,196.50x = 148,955,810,641.54
5. Step 5: Solve for x
   x = 148,955,810,641.54/444,196.50
6. Step 6: Final answer
   x = 335,337.65