Finding the Fourth Proportional to 23,141.07, 31,933.50 and 12,930.30

Step by Step Solution

1. Step 1: Write the proportion equation
   23,141.07 : 31,933.50 = 12,930.30 : x
2. Step 2: Convert to fraction form
   23,141.07/31,933.50 = 12,930.30/x
3. Step 3: Cross multiply
   23,141.07x = 31,933.50 × 12,930.30
4. Step 4: Simplify right side
   23,141.07x = 412,909,735.05
5. Step 5: Solve for x
   x = 412,909,735.05/23,141.07
6. Step 6: Final answer
   x = 17,843.16