Finding the Fourth Proportional to 259,392.54, 388,995.12 and 109,644.42

Step by Step Solution

1. Step 1: Write the proportion equation
   259,392.54 : 388,995.12 = 109,644.42 : x
2. Step 2: Convert to fraction form
   259,392.54/388,995.12 = 109,644.42/x
3. Step 3: Cross multiply
   259,392.54x = 388,995.12 × 109,644.42
4. Step 4: Simplify right side
   259,392.54x = 42,651,144,315.23
5. Step 5: Solve for x
   x = 42,651,144,315.23/259,392.54
6. Step 6: Final answer
   x = 164,427.03