Finding the Fourth Proportional to 12,596.80, 17,407.56 and 9,447.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,596.80 : 17,407.56 = 9,447.52 : x
2. Step 2: Convert to fraction form
   12,596.80/17,407.56 = 9,447.52/x
3. Step 3: Cross multiply
   12,596.80x = 17,407.56 × 9,447.52
4. Step 4: Simplify right side
   12,596.80x = 164,458,271.25
5. Step 5: Solve for x
   x = 164,458,271.25/12,596.80
6. Step 6: Final answer
   x = 13,055.56