Finding the Fourth Proportional to 23,047.62, 31,806.27 and 12,976.40

Step by Step Solution

1. Step 1: Write the proportion equation
   23,047.62 : 31,806.27 = 12,976.40 : x
2. Step 2: Convert to fraction form
   23,047.62/31,806.27 = 12,976.40/x
3. Step 3: Cross multiply
   23,047.62x = 31,806.27 × 12,976.40
4. Step 4: Simplify right side
   23,047.62x = 412,730,723.00
5. Step 5: Solve for x
   x = 412,730,723.00/23,047.62
6. Step 6: Final answer
   x = 17,907.74