Finding the Fourth Proportional to 10,691.27, 16,021.40 and 7,356.09

Step by Step Solution

1. Step 1: Write the proportion equation
   10,691.27 : 16,021.40 = 7,356.09 : x
2. Step 2: Convert to fraction form
   10,691.27/16,021.40 = 7,356.09/x
3. Step 3: Cross multiply
   10,691.27x = 16,021.40 × 7,356.09
4. Step 4: Simplify right side
   10,691.27x = 117,854,878.72
5. Step 5: Solve for x
   x = 117,854,878.72/10,691.27
6. Step 6: Final answer
   x = 11,023.47