Finding the Fourth Proportional to 12,323.31, 17,007.48 and 9,174.03

Step by Step Solution

1. Step 1: Write the proportion equation
   12,323.31 : 17,007.48 = 9,174.03 : x
2. Step 2: Convert to fraction form
   12,323.31/17,007.48 = 9,174.03/x
3. Step 3: Cross multiply
   12,323.31x = 17,007.48 × 9,174.03
4. Step 4: Simplify right side
   12,323.31x = 156,027,131.74
5. Step 5: Solve for x
   x = 156,027,131.74/12,323.31
6. Step 6: Final answer
   x = 12,661.14