Finding the Fourth Proportional to 23,174.40, 31,980.71 and 12,564.06

Step by Step Solution

1. Step 1: Write the proportion equation
   23,174.40 : 31,980.71 = 12,564.06 : x
2. Step 2: Convert to fraction form
   23,174.40/31,980.71 = 12,564.06/x
3. Step 3: Cross multiply
   23,174.40x = 31,980.71 × 12,564.06
4. Step 4: Simplify right side
   23,174.40x = 401,807,336.56
5. Step 5: Solve for x
   x = 401,807,336.56/23,174.40
6. Step 6: Final answer
   x = 17,338.41