Finding the Fourth Proportional to 194,521.50, 268,439.67 and 105,097.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,521.50 : 268,439.67 = 105,097.50 : x
2. Step 2: Convert to fraction form
   194,521.50/268,439.67 = 105,097.50/x
3. Step 3: Cross multiply
   194,521.50x = 268,439.67 × 105,097.50
4. Step 4: Simplify right side
   194,521.50x = 28,212,338,217.83
5. Step 5: Solve for x
   x = 28,212,338,217.83/194,521.50
6. Step 6: Final answer
   x = 145,034.55