Finding the Fourth Proportional to 194,478, 268,379.88 and 105,054

Step by Step Solution

1. Step 1: Write the proportion equation
   194,478 : 268,379.88 = 105,054 : x
2. Step 2: Convert to fraction form
   194,478/268,379.88 = 105,054/x
3. Step 3: Cross multiply
   194,478x = 268,379.88 × 105,054
4. Step 4: Simplify right side
   194,478x = 28,194,379,913.52
5. Step 5: Solve for x
   x = 28,194,379,913.52/194,478
6. Step 6: Final answer
   x = 144,974.65