Finding the Fourth Proportional to 116,090.93, 160,194.29 and 65,105.75

Step by Step Solution

1. Step 1: Write the proportion equation
   116,090.93 : 160,194.29 = 65,105.75 : x
2. Step 2: Convert to fraction form
   116,090.93/160,194.29 = 65,105.75/x
3. Step 3: Cross multiply
   116,090.93x = 160,194.29 × 65,105.75
4. Step 4: Simplify right side
   116,090.93x = 10,429,568,269.67
5. Step 5: Solve for x
   x = 10,429,568,269.67/116,090.93
6. Step 6: Final answer
   x = 89,839.65