Finding the Fourth Proportional to 23,162.90, 31,964.91 and 12,552.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,162.90 : 31,964.91 = 12,552.55 : x
2. Step 2: Convert to fraction form
   23,162.90/31,964.91 = 12,552.55/x
3. Step 3: Cross multiply
   23,162.90x = 31,964.91 × 12,552.55
4. Step 4: Simplify right side
   23,162.90x = 401,241,131.02
5. Step 5: Solve for x
   x = 401,241,131.02/23,162.90
6. Step 6: Final answer
   x = 17,322.58