Finding the Fourth Proportional to 189,498.80, 261,542.04 and 113,022.56

Step by Step Solution

1. Step 1: Write the proportion equation
   189,498.80 : 261,542.04 = 113,022.56 : x
2. Step 2: Convert to fraction form
   189,498.80/261,542.04 = 113,022.56/x
3. Step 3: Cross multiply
   189,498.80x = 261,542.04 × 113,022.56
4. Step 4: Simplify right side
   189,498.80x = 29,560,150,908.42
5. Step 5: Solve for x
   x = 29,560,150,908.42/189,498.80
6. Step 6: Final answer
   x = 155,991.23