Finding the Fourth Proportional to 9,969.35, 13,747.23 and 7,447.50

Step by Step Solution

1. Step 1: Write the proportion equation
   9,969.35 : 13,747.23 = 7,447.50 : x
2. Step 2: Convert to fraction form
   9,969.35/13,747.23 = 7,447.50/x
3. Step 3: Cross multiply
   9,969.35x = 13,747.23 × 7,447.50
4. Step 4: Simplify right side
   9,969.35x = 102,382,495.43
5. Step 5: Solve for x
   x = 102,382,495.43/9,969.35
6. Step 6: Final answer
   x = 10,269.73