Finding the Fourth Proportional to 142,993.61, 197,359.90 and 82,574.09

Step by Step Solution

1. Step 1: Write the proportion equation
   142,993.61 : 197,359.90 = 82,574.09 : x
2. Step 2: Convert to fraction form
   142,993.61/197,359.90 = 82,574.09/x
3. Step 3: Cross multiply
   142,993.61x = 197,359.90 × 82,574.09
4. Step 4: Simplify right side
   142,993.61x = 16,296,812,951.76
5. Step 5: Solve for x
   x = 16,296,812,951.76/142,993.61
6. Step 6: Final answer
   x = 113,968.82