Finding the Fourth Proportional to 82,114.80, 123,171.96 and 19,785.30

Step by Step Solution

1. Step 1: Write the proportion equation
   82,114.80 : 123,171.96 = 19,785.30 : x
2. Step 2: Convert to fraction form
   82,114.80/123,171.96 = 19,785.30/x
3. Step 3: Cross multiply
   82,114.80x = 123,171.96 × 19,785.30
4. Step 4: Simplify right side
   82,114.80x = 2,436,994,180.19
5. Step 5: Solve for x
   x = 2,436,994,180.19/82,114.80
6. Step 6: Final answer
   x = 29,677.89