Finding the Fourth Proportional to 9,696.88, 13,379.64 and 5,716.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,696.88 : 13,379.64 = 5,716.52 : x
2. Step 2: Convert to fraction form
   9,696.88/13,379.64 = 5,716.52/x
3. Step 3: Cross multiply
   9,696.88x = 13,379.64 × 5,716.52
4. Step 4: Simplify right side
   9,696.88x = 76,484,979.65
5. Step 5: Solve for x
   x = 76,484,979.65/9,696.88
6. Step 6: Final answer
   x = 7,887.59