Finding the Fourth Proportional to 9,507, 13,119.71 and 5,315.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507 : 13,119.71 = 5,315.25 : x
2. Step 2: Convert to fraction form
   9,507/13,119.71 = 5,315.25/x
3. Step 3: Cross multiply
   9,507x = 13,119.71 × 5,315.25
4. Step 4: Simplify right side
   9,507x = 69,734,512.00
5. Step 5: Solve for x
   x = 69,734,512.00/9,507
6. Step 6: Final answer
   x = 7,335.07