Finding the Fourth Proportional to 142,164.72, 196,187.27 and 81,747.23

Step by Step Solution

1. Step 1: Write the proportion equation
   142,164.72 : 196,187.27 = 81,747.23 : x
2. Step 2: Convert to fraction form
   142,164.72/196,187.27 = 81,747.23/x
3. Step 3: Cross multiply
   142,164.72x = 196,187.27 × 81,747.23
4. Step 4: Simplify right side
   142,164.72x = 16,037,764,494.09
5. Step 5: Solve for x
   x = 16,037,764,494.09/142,164.72
6. Step 6: Final answer
   x = 112,811.14