Finding the Fourth Proportional to 194,506.50, 268,419 and 105,082.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,506.50 : 268,419 = 105,082.50 : x
2. Step 2: Convert to fraction form
   194,506.50/268,419 = 105,082.50/x
3. Step 3: Cross multiply
   194,506.50x = 268,419 × 105,082.50
4. Step 4: Simplify right side
   194,506.50x = 28,206,139,567.50
5. Step 5: Solve for x
   x = 28,206,139,567.50/194,506.50
6. Step 6: Final answer
   x = 145,013.87