Finding the Fourth Proportional to 259,111.38, 388,719.32 and 109,351.83

Step by Step Solution

1. Step 1: Write the proportion equation
   259,111.38 : 388,719.32 = 109,351.83 : x
2. Step 2: Convert to fraction form
   259,111.38/388,719.32 = 109,351.83/x
3. Step 3: Cross multiply
   259,111.38x = 388,719.32 × 109,351.83
4. Step 4: Simplify right side
   259,111.38x = 42,507,168,451.60
5. Step 5: Solve for x
   x = 42,507,168,451.60/259,111.38
6. Step 6: Final answer
   x = 164,049.79