Finding the Fourth Proportional to 231,881.94, 320,153.55 and 144,800.09

Step by Step Solution

1. Step 1: Write the proportion equation
   231,881.94 : 320,153.55 = 144,800.09 : x
2. Step 2: Convert to fraction form
   231,881.94/320,153.55 = 144,800.09/x
3. Step 3: Cross multiply
   231,881.94x = 320,153.55 × 144,800.09
4. Step 4: Simplify right side
   231,881.94x = 46,358,262,853.82
5. Step 5: Solve for x
   x = 46,358,262,853.82/231,881.94
6. Step 6: Final answer
   x = 199,921.83