Finding the Fourth Proportional to 9,661.44, 14,505.12 and 5,719.98

Step by Step Solution

1. Step 1: Write the proportion equation
   9,661.44 : 14,505.12 = 5,719.98 : x
2. Step 2: Convert to fraction form
   9,661.44/14,505.12 = 5,719.98/x
3. Step 3: Cross multiply
   9,661.44x = 14,505.12 × 5,719.98
4. Step 4: Simplify right side
   9,661.44x = 82,968,996.30
5. Step 5: Solve for x
   x = 82,968,996.30/9,661.44
6. Step 6: Final answer
   x = 8,587.64