Finding the Fourth Proportional to 194,620.56, 268,576.32 and 105,196.56

Step by Step Solution

1. Step 1: Write the proportion equation
   194,620.56 : 268,576.32 = 105,196.56 : x
2. Step 2: Convert to fraction form
   194,620.56/268,576.32 = 105,196.56/x
3. Step 3: Cross multiply
   194,620.56x = 268,576.32 × 105,196.56
4. Step 4: Simplify right side
   194,620.56x = 28,253,304,961.46
5. Step 5: Solve for x
   x = 28,253,304,961.46/194,620.56
6. Step 6: Final answer
   x = 145,171.22