Finding the Fourth Proportional to 16,085.12, 22,179.60 and 10,109.60

Step by Step Solution

1. Step 1: Write the proportion equation
   16,085.12 : 22,179.60 = 10,109.60 : x
2. Step 2: Convert to fraction form
   16,085.12/22,179.60 = 10,109.60/x
3. Step 3: Cross multiply
   16,085.12x = 22,179.60 × 10,109.60
4. Step 4: Simplify right side
   16,085.12x = 224,226,884.16
5. Step 5: Solve for x
   x = 224,226,884.16/16,085.12
6. Step 6: Final answer
   x = 13,940.02