Finding the Fourth Proportional to 10,112, 15,170.56 and 2,816

Step by Step Solution

1. Step 1: Write the proportion equation
   10,112 : 15,170.56 = 2,816 : x
2. Step 2: Convert to fraction form
   10,112/15,170.56 = 2,816/x
3. Step 3: Cross multiply
   10,112x = 15,170.56 × 2,816
4. Step 4: Simplify right side
   10,112x = 42,720,296.96
5. Step 5: Solve for x
   x = 42,720,296.96/10,112
6. Step 6: Final answer
   x = 4,224.71