Finding the Fourth Proportional to 11,916.76, 16,444.72 and 7,200.24

Step by Step Solution

1. Step 1: Write the proportion equation
   11,916.76 : 16,444.72 = 7,200.24 : x
2. Step 2: Convert to fraction form
   11,916.76/16,444.72 = 7,200.24/x
3. Step 3: Cross multiply
   11,916.76x = 16,444.72 × 7,200.24
4. Step 4: Simplify right side
   11,916.76x = 118,405,930.73
5. Step 5: Solve for x
   x = 118,405,930.73/11,916.76
6. Step 6: Final answer
   x = 9,936.08