Finding the Fourth Proportional to 23,174.65, 31,981.05 and 12,564.31

Step by Step Solution

1. Step 1: Write the proportion equation
   23,174.65 : 31,981.05 = 12,564.31 : x
2. Step 2: Convert to fraction form
   23,174.65/31,981.05 = 12,564.31/x
3. Step 3: Cross multiply
   23,174.65x = 31,981.05 × 12,564.31
4. Step 4: Simplify right side
   23,174.65x = 401,819,746.37
5. Step 5: Solve for x
   x = 401,819,746.37/23,174.65
6. Step 6: Final answer
   x = 17,338.76