Finding the Fourth Proportional to 200,408.41, 276,566.55 and 109,772.78

Step by Step Solution

1. Step 1: Write the proportion equation
   200,408.41 : 276,566.55 = 109,772.78 : x
2. Step 2: Convert to fraction form
   200,408.41/276,566.55 = 109,772.78/x
3. Step 3: Cross multiply
   200,408.41x = 276,566.55 × 109,772.78
4. Step 4: Simplify right side
   200,408.41x = 30,359,479,048.51
5. Step 5: Solve for x
   x = 30,359,479,048.51/200,408.41
6. Step 6: Final answer
   x = 151,488.05