Finding the Fourth Proportional to 145,629.42, 200,968.56 and 81,967.56

Step by Step Solution

1. Step 1: Write the proportion equation
   145,629.42 : 200,968.56 = 81,967.56 : x
2. Step 2: Convert to fraction form
   145,629.42/200,968.56 = 81,967.56/x
3. Step 3: Cross multiply
   145,629.42x = 200,968.56 × 81,967.56
4. Step 4: Simplify right side
   145,629.42x = 16,472,902,499.91
5. Step 5: Solve for x
   x = 16,472,902,499.91/145,629.42
6. Step 6: Final answer
   x = 113,115.21