Finding the Fourth Proportional to 82,019.08, 123,028.62 and 19,689.58

Step by Step Solution

1. Step 1: Write the proportion equation
   82,019.08 : 123,028.62 = 19,689.58 : x
2. Step 2: Convert to fraction form
   82,019.08/123,028.62 = 19,689.58/x
3. Step 3: Cross multiply
   82,019.08x = 123,028.62 × 19,689.58
4. Step 4: Simplify right side
   82,019.08x = 2,422,381,855.78
5. Step 5: Solve for x
   x = 2,422,381,855.78/82,019.08
6. Step 6: Final answer
   x = 29,534.37