Finding the Fourth Proportional to 194,900.50, 268,962.69 and 105,476.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,900.50 : 268,962.69 = 105,476.50 : x
2. Step 2: Convert to fraction form
   194,900.50/268,962.69 = 105,476.50/x
3. Step 3: Cross multiply
   194,900.50x = 268,962.69 × 105,476.50
4. Step 4: Simplify right side
   194,900.50x = 28,369,243,171.79
5. Step 5: Solve for x
   x = 28,369,243,171.79/194,900.50
6. Step 6: Final answer
   x = 145,557.57