Finding the Fourth Proportional to 23,037, 31,791.06 and 13,605.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,037 : 31,791.06 = 13,605.72 : x
2. Step 2: Convert to fraction form
   23,037/31,791.06 = 13,605.72/x
3. Step 3: Cross multiply
   23,037x = 31,791.06 × 13,605.72
4. Step 4: Simplify right side
   23,037x = 432,540,260.86
5. Step 5: Solve for x
   x = 432,540,260.86/23,037
6. Step 6: Final answer
   x = 18,775.89