Finding the Fourth Proportional to 9,564.68, 13,198.38 and 5,372.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,564.68 : 13,198.38 = 5,372.12 : x
2. Step 2: Convert to fraction form
   9,564.68/13,198.38 = 5,372.12/x
3. Step 3: Cross multiply
   9,564.68x = 13,198.38 × 5,372.12
4. Step 4: Simplify right side
   9,564.68x = 70,903,281.17
5. Step 5: Solve for x
   x = 70,903,281.17/9,564.68
6. Step 6: Final answer
   x = 7,413.03