Finding the Fourth Proportional to 200,033.97, 275,916.83 and 128,300.37

Step by Step Solution

1. Step 1: Write the proportion equation
   200,033.97 : 275,916.83 = 128,300.37 : x
2. Step 2: Convert to fraction form
   200,033.97/275,916.83 = 128,300.37/x
3. Step 3: Cross multiply
   200,033.97x = 275,916.83 × 128,300.37
4. Step 4: Simplify right side
   200,033.97x = 35,400,230,736.73
5. Step 5: Solve for x
   x = 35,400,230,736.73/200,033.97
6. Step 6: Final answer
   x = 176,971.10