Finding the Fourth Proportional to 142,057.82, 196,113.48 and 103,774.38

Step by Step Solution

1. Step 1: Write the proportion equation
   142,057.82 : 196,113.48 = 103,774.38 : x
2. Step 2: Convert to fraction form
   142,057.82/196,113.48 = 103,774.38/x
3. Step 3: Cross multiply
   142,057.82x = 196,113.48 × 103,774.38
4. Step 4: Simplify right side
   142,057.82x = 20,351,554,796.64
5. Step 5: Solve for x
   x = 20,351,554,796.64/142,057.82
6. Step 6: Final answer
   x = 143,262.47