Finding the Fourth Proportional to 8,969.69, 12,375.69 and 5,383.71

Step by Step Solution

1. Step 1: Write the proportion equation
   8,969.69 : 12,375.69 = 5,383.71 : x
2. Step 2: Convert to fraction form
   8,969.69/12,375.69 = 5,383.71/x
3. Step 3: Cross multiply
   8,969.69x = 12,375.69 × 5,383.71
4. Step 4: Simplify right side
   8,969.69x = 66,627,126.01
5. Step 5: Solve for x
   x = 66,627,126.01/8,969.69
6. Step 6: Final answer
   x = 7,428.03