Finding the Fourth Proportional to 259,067.67, 388,653.90 and 109,308.27

Step by Step Solution

1. Step 1: Write the proportion equation
   259,067.67 : 388,653.90 = 109,308.27 : x
2. Step 2: Convert to fraction form
   259,067.67/388,653.90 = 109,308.27/x
3. Step 3: Cross multiply
   259,067.67x = 388,653.90 × 109,308.27
4. Step 4: Simplify right side
   259,067.67x = 42,483,085,437.75
5. Step 5: Solve for x
   x = 42,483,085,437.75/259,067.67
6. Step 6: Final answer
   x = 163,984.51