Finding the Fourth Proportional to 23,168.44, 31,972.35 and 12,558.05

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.44 : 31,972.35 = 12,558.05 : x
2. Step 2: Convert to fraction form
   23,168.44/31,972.35 = 12,558.05/x
3. Step 3: Cross multiply
   23,168.44x = 31,972.35 × 12,558.05
4. Step 4: Simplify right side
   23,168.44x = 401,510,377.04
5. Step 5: Solve for x
   x = 401,510,377.04/23,168.44
6. Step 6: Final answer
   x = 17,330.06