Finding the Fourth Proportional to 144,569.25, 199,628.69 and 90,944.01

Step by Step Solution

1. Step 1: Write the proportion equation
   144,569.25 : 199,628.69 = 90,944.01 : x
2. Step 2: Convert to fraction form
   144,569.25/199,628.69 = 90,944.01/x
3. Step 3: Cross multiply
   144,569.25x = 199,628.69 × 90,944.01
4. Step 4: Simplify right side
   144,569.25x = 18,155,033,124.93
5. Step 5: Solve for x
   x = 18,155,033,124.93/144,569.25
6. Step 6: Final answer
   x = 125,580.18