Finding the Fourth Proportional to 147,872.25, 204,067.79 and 90,510.42

Step by Step Solution

1. Step 1: Write the proportion equation
   147,872.25 : 204,067.79 = 90,510.42 : x
2. Step 2: Convert to fraction form
   147,872.25/204,067.79 = 90,510.42/x
3. Step 3: Cross multiply
   147,872.25x = 204,067.79 × 90,510.42
4. Step 4: Simplify right side
   147,872.25x = 18,470,262,033.49
5. Step 5: Solve for x
   x = 18,470,262,033.49/147,872.25
6. Step 6: Final answer
   x = 124,906.89