Finding the Fourth Proportional to 194,667, 268,640.82 and 105,243

Step by Step Solution

1. Step 1: Write the proportion equation
   194,667 : 268,640.82 = 105,243 : x
2. Step 2: Convert to fraction form
   194,667/268,640.82 = 105,243/x
3. Step 3: Cross multiply
   194,667x = 268,640.82 × 105,243
4. Step 4: Simplify right side
   194,667x = 28,272,565,819.26
5. Step 5: Solve for x
   x = 28,272,565,819.26/194,667
6. Step 6: Final answer
   x = 145,235.53