Finding the Fourth Proportional to 12,028.10, 16,594.07 and 6,991.42

Step by Step Solution

1. Step 1: Write the proportion equation
   12,028.10 : 16,594.07 = 6,991.42 : x
2. Step 2: Convert to fraction form
   12,028.10/16,594.07 = 6,991.42/x
3. Step 3: Cross multiply
   12,028.10x = 16,594.07 × 6,991.42
4. Step 4: Simplify right side
   12,028.10x = 116,016,112.88
5. Step 5: Solve for x
   x = 116,016,112.88/12,028.10
6. Step 6: Final answer
   x = 9,645.42