Finding the Fourth Proportional to 144,578.32, 199,494.27 and 90,825.27

Step by Step Solution

1. Step 1: Write the proportion equation
   144,578.32 : 199,494.27 = 90,825.27 : x
2. Step 2: Convert to fraction form
   144,578.32/199,494.27 = 90,825.27/x
3. Step 3: Cross multiply
   144,578.32x = 199,494.27 × 90,825.27
4. Step 4: Simplify right side
   144,578.32x = 18,119,120,528.69
5. Step 5: Solve for x
   x = 18,119,120,528.69/144,578.32
6. Step 6: Final answer
   x = 125,323.91