Finding the Fourth Proportional to 9,313.31, 12,850.52 and 5,225.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,313.31 : 12,850.52 = 5,225.25 : x
2. Step 2: Convert to fraction form
   9,313.31/12,850.52 = 5,225.25/x
3. Step 3: Cross multiply
   9,313.31x = 12,850.52 × 5,225.25
4. Step 4: Simplify right side
   9,313.31x = 67,147,179.63
5. Step 5: Solve for x
   x = 67,147,179.63/9,313.31
6. Step 6: Final answer
   x = 7,209.81