Finding the Fourth Proportional to 115,965.38, 160,032.22 and 65,674.10

Step by Step Solution

1. Step 1: Write the proportion equation
   115,965.38 : 160,032.22 = 65,674.10 : x
2. Step 2: Convert to fraction form
   115,965.38/160,032.22 = 65,674.10/x
3. Step 3: Cross multiply
   115,965.38x = 160,032.22 × 65,674.10
4. Step 4: Simplify right side
   115,965.38x = 10,509,971,055.16
5. Step 5: Solve for x
   x = 10,509,971,055.16/115,965.38
6. Step 6: Final answer
   x = 90,630.25