Finding the Fourth Proportional to 23,168.99, 31,973.20 and 12,558.62

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.99 : 31,973.20 = 12,558.62 : x
2. Step 2: Convert to fraction form
   23,168.99/31,973.20 = 12,558.62/x
3. Step 3: Cross multiply
   23,168.99x = 31,973.20 × 12,558.62
4. Step 4: Simplify right side
   23,168.99x = 401,539,317.52
5. Step 5: Solve for x
   x = 401,539,317.52/23,168.99
6. Step 6: Final answer
   x = 17,330.89