Finding the Fourth Proportional to 144,784.15, 199,734.54 and 91,098.76

Step by Step Solution

1. Step 1: Write the proportion equation
   144,784.15 : 199,734.54 = 91,098.76 : x
2. Step 2: Convert to fraction form
   144,784.15/199,734.54 = 91,098.76/x
3. Step 3: Cross multiply
   144,784.15x = 199,734.54 × 91,098.76
4. Step 4: Simplify right side
   144,784.15x = 18,195,568,923.17
5. Step 5: Solve for x
   x = 18,195,568,923.17/144,784.15
6. Step 6: Final answer
   x = 125,673.76