Finding the Fourth Proportional to 194,544, 268,470.72 and 105,120

Step by Step Solution

1. Step 1: Write the proportion equation
   194,544 : 268,470.72 = 105,120 : x
2. Step 2: Convert to fraction form
   194,544/268,470.72 = 105,120/x
3. Step 3: Cross multiply
   194,544x = 268,470.72 × 105,120
4. Step 4: Simplify right side
   194,544x = 28,221,642,086.40
5. Step 5: Solve for x
   x = 28,221,642,086.40/194,544
6. Step 6: Final answer
   x = 145,065.60