Finding the Fourth Proportional to 194,503.50, 268,414.86 and 105,079.50

Step by Step Solution

1. Step 1: Write the proportion equation
   194,503.50 : 268,414.86 = 105,079.50 : x
2. Step 2: Convert to fraction form
   194,503.50/268,414.86 = 105,079.50/x
3. Step 3: Cross multiply
   194,503.50x = 268,414.86 × 105,079.50
4. Step 4: Simplify right side
   194,503.50x = 28,204,899,281.37
5. Step 5: Solve for x
   x = 28,204,899,281.37/194,503.50
6. Step 6: Final answer
   x = 145,009.73