Finding the Fourth Proportional to 79,857.91, 119,864.77 and 65,959.53

Step by Step Solution

1. Step 1: Write the proportion equation
   79,857.91 : 119,864.77 = 65,959.53 : x
2. Step 2: Convert to fraction form
   79,857.91/119,864.77 = 65,959.53/x
3. Step 3: Cross multiply
   79,857.91x = 119,864.77 × 65,959.53
4. Step 4: Simplify right side
   79,857.91x = 7,906,223,293.43
5. Step 5: Solve for x
   x = 7,906,223,293.43/79,857.91
6. Step 6: Final answer
   x = 99,003.63