Finding the Fourth Proportional to 194,843, 268,883.34 and 105,419

Step by Step Solution

1. Step 1: Write the proportion equation
   194,843 : 268,883.34 = 105,419 : x
2. Step 2: Convert to fraction form
   194,843/268,883.34 = 105,419/x
3. Step 3: Cross multiply
   194,843x = 268,883.34 × 105,419
4. Step 4: Simplify right side
   194,843x = 28,345,412,819.46
5. Step 5: Solve for x
   x = 28,345,412,819.46/194,843
6. Step 6: Final answer
   x = 145,478.22