Finding the Fourth Proportional to 116,229.72, 160,383.78 and 65,235.54

Step by Step Solution

1. Step 1: Write the proportion equation
   116,229.72 : 160,383.78 = 65,235.54 : x
2. Step 2: Convert to fraction form
   116,229.72/160,383.78 = 65,235.54/x
3. Step 3: Cross multiply
   116,229.72x = 160,383.78 × 65,235.54
4. Step 4: Simplify right side
   116,229.72x = 10,462,722,495.54
5. Step 5: Solve for x
   x = 10,462,722,495.54/116,229.72
6. Step 6: Final answer
   x = 90,017.62