Finding the Fourth Proportional to 82,115.58, 123,173.50 and 19,786.08

Step by Step Solution

1. Step 1: Write the proportion equation
   82,115.58 : 123,173.50 = 19,786.08 : x
2. Step 2: Convert to fraction form
   82,115.58/123,173.50 = 19,786.08/x
3. Step 3: Cross multiply
   82,115.58x = 123,173.50 × 19,786.08
4. Step 4: Simplify right side
   82,115.58x = 2,437,120,724.88
5. Step 5: Solve for x
   x = 2,437,120,724.88/82,115.58
6. Step 6: Final answer
   x = 29,679.15