Finding the Fourth Proportional to 11,884.56, 16,398.72 and 7,636.56

Step by Step Solution

1. Step 1: Write the proportion equation
   11,884.56 : 16,398.72 = 7,636.56 : x
2. Step 2: Convert to fraction form
   11,884.56/16,398.72 = 7,636.56/x
3. Step 3: Cross multiply
   11,884.56x = 16,398.72 × 7,636.56
4. Step 4: Simplify right side
   11,884.56x = 125,229,809.20
5. Step 5: Solve for x
   x = 125,229,809.20/11,884.56
6. Step 6: Final answer
   x = 10,537.19