Finding the Fourth Proportional to 259,118.88, 388,730.56 and 109,359.32

Step by Step Solution

1. Step 1: Write the proportion equation
   259,118.88 : 388,730.56 = 109,359.32 : x
2. Step 2: Convert to fraction form
   259,118.88/388,730.56 = 109,359.32/x
3. Step 3: Cross multiply
   259,118.88x = 388,730.56 × 109,359.32
4. Step 4: Simplify right side
   259,118.88x = 42,511,309,704.82
5. Step 5: Solve for x
   x = 42,511,309,704.82/259,118.88
6. Step 6: Final answer
   x = 164,061.03