Finding the Fourth Proportional to 10,505, 15,757.56 and 2,713.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,505 : 15,757.56 = 2,713.28 : x
2. Step 2: Convert to fraction form
   10,505/15,757.56 = 2,713.28/x
3. Step 3: Cross multiply
   10,505x = 15,757.56 × 2,713.28
4. Step 4: Simplify right side
   10,505x = 42,754,672.40
5. Step 5: Solve for x
   x = 42,754,672.40/10,505
6. Step 6: Final answer
   x = 4,069.94