Finding the Fourth Proportional to 9,639.06, 13,301.73 and 5,447.22

Step by Step Solution

1. Step 1: Write the proportion equation
   9,639.06 : 13,301.73 = 5,447.22 : x
2. Step 2: Convert to fraction form
   9,639.06/13,301.73 = 5,447.22/x
3. Step 3: Cross multiply
   9,639.06x = 13,301.73 × 5,447.22
4. Step 4: Simplify right side
   9,639.06x = 72,457,449.69
5. Step 5: Solve for x
   x = 72,457,449.69/9,639.06
6. Step 6: Final answer
   x = 7,517.07