Finding the Fourth Proportional to 142,560, 196,784.64 and 82,944

Step by Step Solution

1. Step 1: Write the proportion equation
   142,560 : 196,784.64 = 82,944 : x
2. Step 2: Convert to fraction form
   142,560/196,784.64 = 82,944/x
3. Step 3: Cross multiply
   142,560x = 196,784.64 × 82,944
4. Step 4: Simplify right side
   142,560x = 16,322,105,180.16
5. Step 5: Solve for x
   x = 16,322,105,180.16/142,560
6. Step 6: Final answer
   x = 114,492.88