Finding the Fourth Proportional to 11,603.22, 16,012.72 and 7,124.42

Step by Step Solution

1. Step 1: Write the proportion equation
   11,603.22 : 16,012.72 = 7,124.42 : x
2. Step 2: Convert to fraction form
   11,603.22/16,012.72 = 7,124.42/x
3. Step 3: Cross multiply
   11,603.22x = 16,012.72 × 7,124.42
4. Step 4: Simplify right side
   11,603.22x = 114,081,391.56
5. Step 5: Solve for x
   x = 114,081,391.56/11,603.22
6. Step 6: Final answer
   x = 9,831.88