Finding the Fourth Proportional to 23,166.54, 31,969.98 and 12,556.35

Step by Step Solution

1. Step 1: Write the proportion equation
   23,166.54 : 31,969.98 = 12,556.35 : x
2. Step 2: Convert to fraction form
   23,166.54/31,969.98 = 12,556.35/x
3. Step 3: Cross multiply
   23,166.54x = 31,969.98 × 12,556.35
4. Step 4: Simplify right side
   23,166.54x = 401,426,258.37
5. Step 5: Solve for x
   x = 401,426,258.37/23,166.54
6. Step 6: Final answer
   x = 17,327.85