Finding the Fourth Proportional to 10,891.48, 15,038.72 and 8,369.59

Step by Step Solution

1. Step 1: Write the proportion equation
   10,891.48 : 15,038.72 = 8,369.59 : x
2. Step 2: Convert to fraction form
   10,891.48/15,038.72 = 8,369.59/x
3. Step 3: Cross multiply
   10,891.48x = 15,038.72 × 8,369.59
4. Step 4: Simplify right side
   10,891.48x = 125,867,920.52
5. Step 5: Solve for x
   x = 125,867,920.52/10,891.48
6. Step 6: Final answer
   x = 11,556.55