Finding the Fourth Proportional to 9,388.22, 12,955.86 and 5,196.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.22 : 12,955.86 = 5,196.47 : x
2. Step 2: Convert to fraction form
   9,388.22/12,955.86 = 5,196.47/x
3. Step 3: Cross multiply
   9,388.22x = 12,955.86 × 5,196.47
4. Step 4: Simplify right side
   9,388.22x = 67,324,673.03
5. Step 5: Solve for x
   x = 67,324,673.03/9,388.22
6. Step 6: Final answer
   x = 7,171.19