Finding the Fourth Proportional to 194,715, 268,706.72 and 105,291

Step by Step Solution

1. Step 1: Write the proportion equation
   194,715 : 268,706.72 = 105,291 : x
2. Step 2: Convert to fraction form
   194,715/268,706.72 = 105,291/x
3. Step 3: Cross multiply
   194,715x = 268,706.72 × 105,291
4. Step 4: Simplify right side
   194,715x = 28,292,398,729.07
5. Step 5: Solve for x
   x = 28,292,398,729.07/194,715
6. Step 6: Final answer
   x = 145,301.59