Finding the Fourth Proportional to 142,570.08, 196,790.56 and 82,181.12

Step by Step Solution

1. Step 1: Write the proportion equation
   142,570.08 : 196,790.56 = 82,181.12 : x
2. Step 2: Convert to fraction form
   142,570.08/196,790.56 = 82,181.12/x
3. Step 3: Cross multiply
   142,570.08x = 196,790.56 × 82,181.12
4. Step 4: Simplify right side
   142,570.08x = 16,172,467,436.82
5. Step 5: Solve for x
   x = 16,172,467,436.82/142,570.08
6. Step 6: Final answer
   x = 113,435.21