Finding the Fourth Proportional to 8,744.81, 12,065.27 and 5,388.17

Step by Step Solution

1. Step 1: Write the proportion equation
   8,744.81 : 12,065.27 = 5,388.17 : x
2. Step 2: Convert to fraction form
   8,744.81/12,065.27 = 5,388.17/x
3. Step 3: Cross multiply
   8,744.81x = 12,065.27 × 5,388.17
4. Step 4: Simplify right side
   8,744.81x = 65,009,638.59
5. Step 5: Solve for x
   x = 65,009,638.59/8,744.81
6. Step 6: Final answer
   x = 7,434.09