Finding the Fourth Proportional to 10,507, 15,760.56 and 2,715.28

Step by Step Solution

1. Step 1: Write the proportion equation
   10,507 : 15,760.56 = 2,715.28 : x
2. Step 2: Convert to fraction form
   10,507/15,760.56 = 2,715.28/x
3. Step 3: Cross multiply
   10,507x = 15,760.56 × 2,715.28
4. Step 4: Simplify right side
   10,507x = 42,794,333.36
5. Step 5: Solve for x
   x = 42,794,333.36/10,507
6. Step 6: Final answer
   x = 4,072.94