Finding the Fourth Proportional to 82,215.54, 123,322.23 and 19,885.50

Step by Step Solution

1. Step 1: Write the proportion equation
   82,215.54 : 123,322.23 = 19,885.50 : x
2. Step 2: Convert to fraction form
   82,215.54/123,322.23 = 19,885.50/x
3. Step 3: Cross multiply
   82,215.54x = 123,322.23 × 19,885.50
4. Step 4: Simplify right side
   82,215.54x = 2,452,324,204.67
5. Step 5: Solve for x
   x = 2,452,324,204.67/82,215.54
6. Step 6: Final answer
   x = 29,827.99