Finding the Fourth Proportional to 10,998.42, 16,493.07 and 7,665.27

Step by Step Solution

1. Step 1: Write the proportion equation
   10,998.42 : 16,493.07 = 7,665.27 : x
2. Step 2: Convert to fraction form
   10,998.42/16,493.07 = 7,665.27/x
3. Step 3: Cross multiply
   10,998.42x = 16,493.07 × 7,665.27
4. Step 4: Simplify right side
   10,998.42x = 126,423,834.68
5. Step 5: Solve for x
   x = 126,423,834.68/10,998.42
6. Step 6: Final answer
   x = 11,494.73