Finding the Fourth Proportional to 142,434.44, 196,559.16 and 81,983

Step by Step Solution

1. Step 1: Write the proportion equation
   142,434.44 : 196,559.16 = 81,983 : x
2. Step 2: Convert to fraction form
   142,434.44/196,559.16 = 81,983/x
3. Step 3: Cross multiply
   142,434.44x = 196,559.16 × 81,983
4. Step 4: Simplify right side
   142,434.44x = 16,114,509,614.28
5. Step 5: Solve for x
   x = 16,114,509,614.28/142,434.44
6. Step 6: Final answer
   x = 113,136.33