Finding the Fourth Proportional to 12,047.04, 16,609.92 and 7,791.12

Step by Step Solution

1. Step 1: Write the proportion equation
   12,047.04 : 16,609.92 = 7,791.12 : x
2. Step 2: Convert to fraction form
   12,047.04/16,609.92 = 7,791.12/x
3. Step 3: Cross multiply
   12,047.04x = 16,609.92 × 7,791.12
4. Step 4: Simplify right side
   12,047.04x = 129,409,879.91
5. Step 5: Solve for x
   x = 129,409,879.91/12,047.04
6. Step 6: Final answer
   x = 10,742.05