Finding the Fourth Proportional to 259,959.27, 389,859.51 and 110,196.75

Step by Step Solution

1. Step 1: Write the proportion equation
   259,959.27 : 389,859.51 = 110,196.75 : x
2. Step 2: Convert to fraction form
   259,959.27/389,859.51 = 110,196.75/x
3. Step 3: Cross multiply
   259,959.27x = 389,859.51 × 110,196.75
4. Step 4: Simplify right side
   259,959.27x = 42,961,250,958.59
5. Step 5: Solve for x
   x = 42,961,250,958.59/259,959.27
6. Step 6: Final answer
   x = 165,261.47