Finding the Fourth Proportional to 142,262.10, 196,327.40 and 81,832.77

Step by Step Solution

1. Step 1: Write the proportion equation
   142,262.10 : 196,327.40 = 81,832.77 : x
2. Step 2: Convert to fraction form
   142,262.10/196,327.40 = 81,832.77/x
3. Step 3: Cross multiply
   142,262.10x = 196,327.40 × 81,832.77
4. Step 4: Simplify right side
   142,262.10x = 16,066,014,559.73
5. Step 5: Solve for x
   x = 16,066,014,559.73/142,262.10
6. Step 6: Final answer
   x = 112,932.50