Finding the Fourth Proportional to 448,144.22, 618,431.05 and 244,196.57

Step by Step Solution

1. Step 1: Write the proportion equation
   448,144.22 : 618,431.05 = 244,196.57 : x
2. Step 2: Convert to fraction form
   448,144.22/618,431.05 = 244,196.57/x
3. Step 3: Cross multiply
   448,144.22x = 618,431.05 × 244,196.57
4. Step 4: Simplify right side
   448,144.22x = 151,018,741,191.50
5. Step 5: Solve for x
   x = 151,018,741,191.50/448,144.22
6. Step 6: Final answer
   x = 336,986.92