Finding the Fourth Proportional to 132,968.78, 199,452.63 and 54,082.34

Step by Step Solution

1. Step 1: Write the proportion equation
   132,968.78 : 199,452.63 = 54,082.34 : x
2. Step 2: Convert to fraction form
   132,968.78/199,452.63 = 54,082.34/x
3. Step 3: Cross multiply
   132,968.78x = 199,452.63 × 54,082.34
4. Step 4: Simplify right side
   132,968.78x = 10,786,864,949.55
5. Step 5: Solve for x
   x = 10,786,864,949.55/132,968.78
6. Step 6: Final answer
   x = 81,123.29