Finding the Fourth Proportional to 116,091.93, 160,195.66 and 65,106.75

Step by Step Solution

1. Step 1: Write the proportion equation
   116,091.93 : 160,195.66 = 65,106.75 : x
2. Step 2: Convert to fraction form
   116,091.93/160,195.66 = 65,106.75/x
3. Step 3: Cross multiply
   116,091.93x = 160,195.66 × 65,106.75
4. Step 4: Simplify right side
   116,091.93x = 10,429,818,786.71
5. Step 5: Solve for x
   x = 10,429,818,786.71/116,091.93
6. Step 6: Final answer
   x = 89,841.03