Finding the Fourth Proportional to 17,113.51, 23,615.28 and 9,559.25

Step by Step Solution

1. Step 1: Write the proportion equation
   17,113.51 : 23,615.28 = 9,559.25 : x
2. Step 2: Convert to fraction form
   17,113.51/23,615.28 = 9,559.25/x
3. Step 3: Cross multiply
   17,113.51x = 23,615.28 × 9,559.25
4. Step 4: Simplify right side
   17,113.51x = 225,744,335.82
5. Step 5: Solve for x
   x = 225,744,335.82/17,113.51
6. Step 6: Final answer
   x = 13,191.00