Finding the Fourth Proportional to 9,309.38, 13,973.31 and 7,574.82

Step by Step Solution

1. Step 1: Write the proportion equation
   9,309.38 : 13,973.31 = 7,574.82 : x
2. Step 2: Convert to fraction form
   9,309.38/13,973.31 = 7,574.82/x
3. Step 3: Cross multiply
   9,309.38x = 13,973.31 × 7,574.82
4. Step 4: Simplify right side
   9,309.38x = 105,845,255.65
5. Step 5: Solve for x
   x = 105,845,255.65/9,309.38
6. Step 6: Final answer
   x = 11,369.74