Finding the Fourth Proportional to 9,693.57, 13,394.70 and 7,574.61

Step by Step Solution

1. Step 1: Write the proportion equation
   9,693.57 : 13,394.70 = 7,574.61 : x
2. Step 2: Convert to fraction form
   9,693.57/13,394.70 = 7,574.61/x
3. Step 3: Cross multiply
   9,693.57x = 13,394.70 × 7,574.61
4. Step 4: Simplify right side
   9,693.57x = 101,459,628.57
5. Step 5: Solve for x
   x = 101,459,628.57/9,693.57
6. Step 6: Final answer
   x = 10,466.69