Finding the Fourth Proportional to 82,112.79, 123,168.97 and 19,783.29

Step by Step Solution

1. Step 1: Write the proportion equation
   82,112.79 : 123,168.97 = 19,783.29 : x
2. Step 2: Convert to fraction form
   82,112.79/123,168.97 = 19,783.29/x
3. Step 3: Cross multiply
   82,112.79x = 123,168.97 × 19,783.29
4. Step 4: Simplify right side
   82,112.79x = 2,436,687,452.51
5. Step 5: Solve for x
   x = 2,436,687,452.51/82,112.79
6. Step 6: Final answer
   x = 29,674.88