Finding the Fourth Proportional to 82,216, 123,328.05 and 26,812

Step by Step Solution

1. Step 1: Write the proportion equation
   82,216 : 123,328.05 = 26,812 : x
2. Step 2: Convert to fraction form
   82,216/123,328.05 = 26,812/x
3. Step 3: Cross multiply
   82,216x = 123,328.05 × 26,812
4. Step 4: Simplify right side
   82,216x = 3,306,671,676.60
5. Step 5: Solve for x
   x = 3,306,671,676.60/82,216
6. Step 6: Final answer
   x = 40,219.32