Finding the Fourth Proportional to 142,408.18, 196,456.37 and 101,581.32

Step by Step Solution

1. Step 1: Write the proportion equation
   142,408.18 : 196,456.37 = 101,581.32 : x
2. Step 2: Convert to fraction form
   142,408.18/196,456.37 = 101,581.32/x
3. Step 3: Cross multiply
   142,408.18x = 196,456.37 × 101,581.32
4. Step 4: Simplify right side
   142,408.18x = 19,956,298,187.21
5. Step 5: Solve for x
   x = 19,956,298,187.21/142,408.18
6. Step 6: Final answer
   x = 140,134.50