Finding the Fourth Proportional to 116,187.94, 160,323.99 and 65,198.71

Step by Step Solution

1. Step 1: Write the proportion equation
   116,187.94 : 160,323.99 = 65,198.71 : x
2. Step 2: Convert to fraction form
   116,187.94/160,323.99 = 65,198.71/x
3. Step 3: Cross multiply
   116,187.94x = 160,323.99 × 65,198.71
4. Step 4: Simplify right side
   116,187.94x = 10,452,916,528.43
5. Step 5: Solve for x
   x = 10,452,916,528.43/116,187.94
6. Step 6: Final answer
   x = 89,965.59