Finding the Fourth Proportional to 11,647.56, 16,062.40 and 7,663.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,647.56 : 16,062.40 = 7,663.72 : x
2. Step 2: Convert to fraction form
   11,647.56/16,062.40 = 7,663.72/x
3. Step 3: Cross multiply
   11,647.56x = 16,062.40 × 7,663.72
4. Step 4: Simplify right side
   11,647.56x = 123,097,736.13
5. Step 5: Solve for x
   x = 123,097,736.13/11,647.56
6. Step 6: Final answer
   x = 10,568.54