Finding the Fourth Proportional to 10,931.33, 16,415.27 and 9,556.60

Step by Step Solution

1. Step 1: Write the proportion equation
   10,931.33 : 16,415.27 = 9,556.60 : x
2. Step 2: Convert to fraction form
   10,931.33/16,415.27 = 9,556.60/x
3. Step 3: Cross multiply
   10,931.33x = 16,415.27 × 9,556.60
4. Step 4: Simplify right side
   10,931.33x = 156,874,169.28
5. Step 5: Solve for x
   x = 156,874,169.28/10,931.33
6. Step 6: Final answer
   x = 14,350.88