Finding the Fourth Proportional to 16,003.44, 22,085.28 and 8,931.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.44 : 22,085.28 = 8,931.60 : x
2. Step 2: Convert to fraction form
   16,003.44/22,085.28 = 8,931.60/x
3. Step 3: Cross multiply
   16,003.44x = 22,085.28 × 8,931.60
4. Step 4: Simplify right side
   16,003.44x = 197,256,886.85
5. Step 5: Solve for x
   x = 197,256,886.85/16,003.44
6. Step 6: Final answer
   x = 12,325.91