Finding the Fourth Proportional to 11,822.16, 16,311.60 and 7,104.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,822.16 : 16,311.60 = 7,104.72 : x
2. Step 2: Convert to fraction form
   11,822.16/16,311.60 = 7,104.72/x
3. Step 3: Cross multiply
   11,822.16x = 16,311.60 × 7,104.72
4. Step 4: Simplify right side
   11,822.16x = 115,889,350.75
5. Step 5: Solve for x
   x = 115,889,350.75/11,822.16
6. Step 6: Final answer
   x = 9,802.72