Finding the Fourth Proportional to 448,143.32, 618,429.78 and 244,196.02

Step by Step Solution

1. Step 1: Write the proportion equation
   448,143.32 : 618,429.78 = 244,196.02 : x
2. Step 2: Convert to fraction form
   448,143.32/618,429.78 = 244,196.02/x
3. Step 3: Cross multiply
   448,143.32x = 618,429.78 × 244,196.02
4. Step 4: Simplify right side
   448,143.32x = 151,018,090,925.48
5. Step 5: Solve for x
   x = 151,018,090,925.48/448,143.32
6. Step 6: Final answer
   x = 336,986.15