Finding the Fourth Proportional to 194,685, 268,665.30 and 105,261

Step by Step Solution

1. Step 1: Write the proportion equation
   194,685 : 268,665.30 = 105,261 : x
2. Step 2: Convert to fraction form
   194,685/268,665.30 = 105,261/x
3. Step 3: Cross multiply
   194,685x = 268,665.30 × 105,261
4. Step 4: Simplify right side
   194,685x = 28,279,978,143.30
5. Step 5: Solve for x
   x = 28,279,978,143.30/194,685
6. Step 6: Final answer
   x = 145,260.18