Finding the Fourth Proportional to 10,925.18, 15,085.40 and 8,794

Step by Step Solution

1. Step 1: Write the proportion equation
   10,925.18 : 15,085.40 = 8,794 : x
2. Step 2: Convert to fraction form
   10,925.18/15,085.40 = 8,794/x
3. Step 3: Cross multiply
   10,925.18x = 15,085.40 × 8,794
4. Step 4: Simplify right side
   10,925.18x = 132,661,007.60
5. Step 5: Solve for x
   x = 132,661,007.60/10,925.18
6. Step 6: Final answer
   x = 12,142.68