Finding the Fourth Proportional to 142,056.81, 196,112.10 and 103,773.38

Step by Step Solution

1. Step 1: Write the proportion equation
   142,056.81 : 196,112.10 = 103,773.38 : x
2. Step 2: Convert to fraction form
   142,056.81/196,112.10 = 103,773.38/x
3. Step 3: Cross multiply
   142,056.81x = 196,112.10 × 103,773.38
4. Step 4: Simplify right side
   142,056.81x = 20,351,213,976.47
5. Step 5: Solve for x
   x = 20,351,213,976.47/142,056.81
6. Step 6: Final answer
   x = 143,261.09