Finding the Fourth Proportional to 245,538.16, 338,846.16 and 144,936.16

Step by Step Solution

1. Step 1: Write the proportion equation
   245,538.16 : 338,846.16 = 144,936.16 : x
2. Step 2: Convert to fraction form
   245,538.16/338,846.16 = 144,936.16/x
3. Step 3: Cross multiply
   245,538.16x = 338,846.16 × 144,936.16
4. Step 4: Simplify right side
   245,538.16x = 49,111,061,261.15
5. Step 5: Solve for x
   x = 49,111,061,261.15/245,538.16
6. Step 6: Final answer
   x = 200,013.97