Finding the Fourth Proportional to 11,649.88, 16,072.32 and 7,672.96

Step by Step Solution

1. Step 1: Write the proportion equation
   11,649.88 : 16,072.32 = 7,672.96 : x
2. Step 2: Convert to fraction form
   11,649.88/16,072.32 = 7,672.96/x
3. Step 3: Cross multiply
   11,649.88x = 16,072.32 × 7,672.96
4. Step 4: Simplify right side
   11,649.88x = 123,322,268.47
5. Step 5: Solve for x
   x = 123,322,268.47/11,649.88
6. Step 6: Final answer
   x = 10,585.71