Finding the Fourth Proportional to 23,168.12, 31,972.02 and 12,557.84

Step by Step Solution

1. Step 1: Write the proportion equation
   23,168.12 : 31,972.02 = 12,557.84 : x
2. Step 2: Convert to fraction form
   23,168.12/31,972.02 = 12,557.84/x
3. Step 3: Cross multiply
   23,168.12x = 31,972.02 × 12,557.84
4. Step 4: Simplify right side
   23,168.12x = 401,499,511.64
5. Step 5: Solve for x
   x = 401,499,511.64/23,168.12
6. Step 6: Final answer
   x = 17,329.83