Finding the Fourth Proportional to 20,256.02, 30,383.99 and 7,112.15

Step by Step Solution

1. Step 1: Write the proportion equation
   20,256.02 : 30,383.99 = 7,112.15 : x
2. Step 2: Convert to fraction form
   20,256.02/30,383.99 = 7,112.15/x
3. Step 3: Cross multiply
   20,256.02x = 30,383.99 × 7,112.15
4. Step 4: Simplify right side
   20,256.02x = 216,095,458.92
5. Step 5: Solve for x
   x = 216,095,458.92/20,256.02
6. Step 6: Final answer
   x = 10,668.21