Finding the Fourth Proportional to 200,390.42, 276,539.20 and 108,510.71

Step by Step Solution

1. Step 1: Write the proportion equation
   200,390.42 : 276,539.20 = 108,510.71 : x
2. Step 2: Convert to fraction form
   200,390.42/276,539.20 = 108,510.71/x
3. Step 3: Cross multiply
   200,390.42x = 276,539.20 × 108,510.71
4. Step 4: Simplify right side
   200,390.42x = 30,007,464,934.83
5. Step 5: Solve for x
   x = 30,007,464,934.83/200,390.42
6. Step 6: Final answer
   x = 149,745.01