Finding the Fourth Proportional to 194,908.50, 268,973.76 and 105,484.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,908.50 : 268,973.76 = 105,484.50 : x
2. Step 2: Convert to fraction form
   194,908.50/268,973.76 = 105,484.50/x
3. Step 3: Cross multiply
   194,908.50x = 268,973.76 × 105,484.50
4. Step 4: Simplify right side
   194,908.50x = 28,372,562,586.72
5. Step 5: Solve for x
   x = 28,372,562,586.72/194,908.50
6. Step 6: Final answer
   x = 145,568.63