Finding the Fourth Proportional to 23,168.30, 31,972.25 and 12,557.93

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.30 : 31,972.25 = 12,557.93 : x
2. Step 2: Convert to fraction form
   23,168.30/31,972.25 = 12,557.93/x
3. Step 3: Cross multiply
   23,168.30x = 31,972.25 × 12,557.93
4. Step 4: Simplify right side
   23,168.30x = 401,505,054.79
5. Step 5: Solve for x
   x = 401,505,054.79/23,168.30
6. Step 6: Final answer
   x = 17,329.94