Finding the Fourth Proportional to 194,662, 268,633.62 and 105,238

Step by Step Solution

1. Step 1: Write the proportion equation
   194,662 : 268,633.62 = 105,238 : x
2. Step 2: Convert to fraction form
   194,662/268,633.62 = 105,238/x
3. Step 3: Cross multiply
   194,662x = 268,633.62 × 105,238
4. Step 4: Simplify right side
   194,662x = 28,270,464,901.56
5. Step 5: Solve for x
   x = 28,270,464,901.56/194,662
6. Step 6: Final answer
   x = 145,228.47