Finding the Fourth Proportional to 129,940.05, 194,922.83 and 54,022.91

Step by Step Solution

1. Step 1: Write the proportion equation
   129,940.05 : 194,922.83 = 54,022.91 : x
2. Step 2: Convert to fraction form
   129,940.05/194,922.83 = 54,022.91/x
3. Step 3: Cross multiply
   129,940.05x = 194,922.83 × 54,022.91
4. Step 4: Simplify right side
   129,940.05x = 10,530,297,662.48
5. Step 5: Solve for x
   x = 10,530,297,662.48/129,940.05
6. Step 6: Final answer
   x = 81,039.66