Finding the Fourth Proportional to 9,696.66, 13,381.72 and 5,448.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,696.66 : 13,381.72 = 5,448.47 : x
2. Step 2: Convert to fraction form
   9,696.66/13,381.72 = 5,448.47/x
3. Step 3: Cross multiply
   9,696.66x = 13,381.72 × 5,448.47
4. Step 4: Simplify right side
   9,696.66x = 72,909,899.97
5. Step 5: Solve for x
   x = 72,909,899.97/9,696.66
6. Step 6: Final answer
   x = 7,519.07