Finding the Fourth Proportional to 12,629.31, 17,427.26 and 7,323.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,629.31 : 17,427.26 = 7,323.57 : x
2. Step 2: Convert to fraction form
   12,629.31/17,427.26 = 7,323.57/x
3. Step 3: Cross multiply
   12,629.31x = 17,427.26 × 7,323.57
4. Step 4: Simplify right side
   12,629.31x = 127,629,721.90
5. Step 5: Solve for x
   x = 127,629,721.90/12,629.31
6. Step 6: Final answer
   x = 10,105.83