Finding the Fourth Proportional to 23,175, 31,981.32 and 12,564.36

Step by Step Solution

1. Step 1: Write the proportion equation
   23,175 : 31,981.32 = 12,564.36 : x
2. Step 2: Convert to fraction form
   23,175/31,981.32 = 12,564.36/x
3. Step 3: Cross multiply
   23,175x = 31,981.32 × 12,564.36
4. Step 4: Simplify right side
   23,175x = 401,824,817.76
5. Step 5: Solve for x
   x = 401,824,817.76/23,175
6. Step 6: Final answer
   x = 17,338.72