Finding the Fourth Proportional to 23,629.58, 32,610.28 and 13,019.20

Step by Step Solution

1. Step 1: Write the proportion equation
   23,629.58 : 32,610.28 = 13,019.20 : x
2. Step 2: Convert to fraction form
   23,629.58/32,610.28 = 13,019.20/x
3. Step 3: Cross multiply
   23,629.58x = 32,610.28 × 13,019.20
4. Step 4: Simplify right side
   23,629.58x = 424,559,757.38
5. Step 5: Solve for x
   x = 424,559,757.38/23,629.58
6. Step 6: Final answer
   x = 17,967.30