Finding the Fourth Proportional to 144,301.77, 199,007.55 and 90,591.84

Step by Step Solution

1. Step 1: Write the proportion equation
   144,301.77 : 199,007.55 = 90,591.84 : x
2. Step 2: Convert to fraction form
   144,301.77/199,007.55 = 90,591.84/x
3. Step 3: Cross multiply
   144,301.77x = 199,007.55 × 90,591.84
4. Step 4: Simplify right side
   144,301.77x = 18,028,460,128.39
5. Step 5: Solve for x
   x = 18,028,460,128.39/144,301.77
6. Step 6: Final answer
   x = 124,935.82