Finding the Fourth Proportional to 140,839, 194,357.82 and 81,223

Step by Step Solution

1. Step 1: Write the proportion equation
   140,839 : 194,357.82 = 81,223 : x
2. Step 2: Convert to fraction form
   140,839/194,357.82 = 81,223/x
3. Step 3: Cross multiply
   140,839x = 194,357.82 × 81,223
4. Step 4: Simplify right side
   140,839x = 15,786,325,213.86
5. Step 5: Solve for x
   x = 15,786,325,213.86/140,839
6. Step 6: Final answer
   x = 112,087.74