Finding the Fourth Proportional to 23,168.94, 31,973.05 and 12,558.55

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.94 : 31,973.05 = 12,558.55 : x
2. Step 2: Convert to fraction form
   23,168.94/31,973.05 = 12,558.55/x
3. Step 3: Cross multiply
   23,168.94x = 31,973.05 × 12,558.55
4. Step 4: Simplify right side
   23,168.94x = 401,535,084.28
5. Step 5: Solve for x
   x = 401,535,084.28/23,168.94
6. Step 6: Final answer
   x = 17,330.75