Finding the Fourth Proportional to 82,196.62, 123,294.96 and 19,867.12

Step by Step Solution

1. Step 1: Write the proportion equation
   82,196.62 : 123,294.96 = 19,867.12 : x
2. Step 2: Convert to fraction form
   82,196.62/123,294.96 = 19,867.12/x
3. Step 3: Cross multiply
   82,196.62x = 123,294.96 × 19,867.12
4. Step 4: Simplify right side
   82,196.62x = 2,449,515,765.72
5. Step 5: Solve for x
   x = 2,449,515,765.72/82,196.62
6. Step 6: Final answer
   x = 29,800.69