Finding the Fourth Proportional to 8,259.28, 11,401.69 and 5,538.45

Step by Step Solution

1. Step 1: Write the proportion equation
   8,259.28 : 11,401.69 = 5,538.45 : x
2. Step 2: Convert to fraction form
   8,259.28/11,401.69 = 5,538.45/x
3. Step 3: Cross multiply
   8,259.28x = 11,401.69 × 5,538.45
4. Step 4: Simplify right side
   8,259.28x = 63,147,647.63
5. Step 5: Solve for x
   x = 63,147,647.63/8,259.28
6. Step 6: Final answer
   x = 7,645.66