Finding the Fourth Proportional to 116,198.38, 160,353.76 and 65,897.38

Step by Step Solution

1. Step 1: Write the proportion equation
   116,198.38 : 160,353.76 = 65,897.38 : x
2. Step 2: Convert to fraction form
   116,198.38/160,353.76 = 65,897.38/x
3. Step 3: Cross multiply
   116,198.38x = 160,353.76 × 65,897.38
4. Step 4: Simplify right side
   116,198.38x = 10,566,891,855.38
5. Step 5: Solve for x
   x = 10,566,891,855.38/116,198.38
6. Step 6: Final answer
   x = 90,938.38