Finding the Fourth Proportional to 9,507.25, 13,120.05 and 5,316.31

Step by Step Solution

1. Step 1: Write the proportion equation
   9,507.25 : 13,120.05 = 5,316.31 : x
2. Step 2: Convert to fraction form
   9,507.25/13,120.05 = 5,316.31/x
3. Step 3: Cross multiply
   9,507.25x = 13,120.05 × 5,316.31
4. Step 4: Simplify right side
   9,507.25x = 69,750,253.02
5. Step 5: Solve for x
   x = 69,750,253.02/9,507.25
6. Step 6: Final answer
   x = 7,336.53