Finding the Fourth Proportional to 142,054.81, 196,109.34 and 103,771.37

Step by Step Solution

1. Step 1: Write the proportion equation
   142,054.81 : 196,109.34 = 103,771.37 : x
2. Step 2: Convert to fraction form
   142,054.81/196,109.34 = 103,771.37/x
3. Step 3: Cross multiply
   142,054.81x = 196,109.34 × 103,771.37
4. Step 4: Simplify right side
   142,054.81x = 20,350,534,982.73
5. Step 5: Solve for x
   x = 20,350,534,982.73/142,054.81
6. Step 6: Final answer
   x = 143,258.33