Finding the Fourth Proportional to 200,361.29, 276,498.56 and 109,722.78

Step by Step Solution

1. Step 1: Write the proportion equation
   200,361.29 : 276,498.56 = 109,722.78 : x
2. Step 2: Convert to fraction form
   200,361.29/276,498.56 = 109,722.78/x
3. Step 3: Cross multiply
   200,361.29x = 276,498.56 × 109,722.78
4. Step 4: Simplify right side
   200,361.29x = 30,338,190,120.58
5. Step 5: Solve for x
   x = 30,338,190,120.58/200,361.29
6. Step 6: Final answer
   x = 151,417.43