Finding the Fourth Proportional to 10,922.76, 16,386.60 and 3,997.26

Step by Step Solution

1. Step 1: Write the proportion equation
   10,922.76 : 16,386.60 = 3,997.26 : x
2. Step 2: Convert to fraction form
   10,922.76/16,386.60 = 3,997.26/x
3. Step 3: Cross multiply
   10,922.76x = 16,386.60 × 3,997.26
4. Step 4: Simplify right side
   10,922.76x = 65,501,500.72
5. Step 5: Solve for x
   x = 65,501,500.72/10,922.76
6. Step 6: Final answer
   x = 5,996.79