Finding the Fourth Proportional to 23,165.62, 31,968.61 and 12,555.25

Step by Step Solution

1. Step 1: Write the proportion equation
   23,165.62 : 31,968.61 = 12,555.25 : x
2. Step 2: Convert to fraction form
   23,165.62/31,968.61 = 12,555.25/x
3. Step 3: Cross multiply
   23,165.62x = 31,968.61 × 12,555.25
4. Step 4: Simplify right side
   23,165.62x = 401,373,779.39
5. Step 5: Solve for x
   x = 401,373,779.39/23,165.62
6. Step 6: Final answer
   x = 17,326.27