Finding the Fourth Proportional to 8,196.51, 11,309.49 and 5,211.26

Step by Step Solution

1. Step 1: Write the proportion equation
   8,196.51 : 11,309.49 = 5,211.26 : x
2. Step 2: Convert to fraction form
   8,196.51/11,309.49 = 5,211.26/x
3. Step 3: Cross multiply
   8,196.51x = 11,309.49 × 5,211.26
4. Step 4: Simplify right side
   8,196.51x = 58,936,636.31
5. Step 5: Solve for x
   x = 58,936,636.31/8,196.51
6. Step 6: Final answer
   x = 7,190.45