Finding the Fourth Proportional to 23,168.68, 31,972.50 and 12,558.09

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.68 : 31,972.50 = 12,558.09 : x
2. Step 2: Convert to fraction form
   23,168.68/31,972.50 = 12,558.09/x
3. Step 3: Cross multiply
   23,168.68x = 31,972.50 × 12,558.09
4. Step 4: Simplify right side
   23,168.68x = 401,513,437.26
5. Step 5: Solve for x
   x = 401,513,437.26/23,168.68
6. Step 6: Final answer
   x = 17,330.01