Finding the Fourth Proportional to 23,168.81, 31,973.00 and 12,558.56

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.81 : 31,973.00 = 12,558.56 : x
2. Step 2: Convert to fraction form
   23,168.81/31,973.00 = 12,558.56/x
3. Step 3: Cross multiply
   23,168.81x = 31,973.00 × 12,558.56
4. Step 4: Simplify right side
   23,168.81x = 401,534,616.22
5. Step 5: Solve for x
   x = 401,534,616.22/23,168.81
6. Step 6: Final answer
   x = 17,330.82