Finding the Fourth Proportional to 82,216.12, 123,324.18 and 19,886.62

Step by Step Solution

1. Step 1: Write the proportion equation
   82,216.12 : 123,324.18 = 19,886.62 : x
2. Step 2: Convert to fraction form
   82,216.12/123,324.18 = 19,886.62/x
3. Step 3: Cross multiply
   82,216.12x = 123,324.18 × 19,886.62
4. Step 4: Simplify right side
   82,216.12x = 2,452,501,104.47
5. Step 5: Solve for x
   x = 2,452,501,104.47/82,216.12
6. Step 6: Final answer
   x = 29,829.93