Finding the Fourth Proportional to 116,395.37, 160,613.63 and 65,399.99

Step by Step Solution

1. Step 1: Write the proportion equation
   116,395.37 : 160,613.63 = 65,399.99 : x
2. Step 2: Convert to fraction form
   116,395.37/160,613.63 = 65,399.99/x
3. Step 3: Cross multiply
   116,395.37x = 160,613.63 × 65,399.99
4. Step 4: Simplify right side
   116,395.37x = 10,504,129,468.86
5. Step 5: Solve for x
   x = 10,504,129,468.86/116,395.37
6. Step 6: Final answer
   x = 90,245.25