Finding the Fourth Proportional to 9,507.29, 13,120.01 and 5,315.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507.29 : 13,120.01 = 5,315.54 : x
2. Step 2: Convert to fraction form
   9,507.29/13,120.01 = 5,315.54/x
3. Step 3: Cross multiply
   9,507.29x = 13,120.01 × 5,315.54
4. Step 4: Simplify right side
   9,507.29x = 69,739,865.71
5. Step 5: Solve for x
   x = 69,739,865.71/9,507.29
6. Step 6: Final answer
   x = 7,335.41