Finding the Fourth Proportional to 142,607.77, 196,842.50 and 82,218.73

Step by Step Solution

1. Step 1: Write the proportion equation
   142,607.77 : 196,842.50 = 82,218.73 : x
2. Step 2: Convert to fraction form
   142,607.77/196,842.50 = 82,218.73/x
3. Step 3: Cross multiply
   142,607.77x = 196,842.50 × 82,218.73
4. Step 4: Simplify right side
   142,607.77x = 16,184,140,360.03
5. Step 5: Solve for x
   x = 16,184,140,360.03/142,607.77
6. Step 6: Final answer
   x = 113,487.09