Finding the Fourth Proportional to 23,016.07, 31,763.33 and 12,947.68

Step by Step Solution

1. Step 1: Write the proportion equation
   23,016.07 : 31,763.33 = 12,947.68 : x
2. Step 2: Convert to fraction form
   23,016.07/31,763.33 = 12,947.68/x
3. Step 3: Cross multiply
   23,016.07x = 31,763.33 × 12,947.68
4. Step 4: Simplify right side
   23,016.07x = 411,261,432.57
5. Step 5: Solve for x
   x = 411,261,432.57/23,016.07
6. Step 6: Final answer
   x = 17,868.45