Finding the Fourth Proportional to 23,013.96, 31,757.91 and 12,804.72

Step by Step Solution

1. Step 1: Write the proportion equation
   23,013.96 : 31,757.91 = 12,804.72 : x
2. Step 2: Convert to fraction form
   23,013.96/31,757.91 = 12,804.72/x
3. Step 3: Cross multiply
   23,013.96x = 31,757.91 × 12,804.72
4. Step 4: Simplify right side
   23,013.96x = 406,651,300.20
5. Step 5: Solve for x
   x = 406,651,300.20/23,013.96
6. Step 6: Final answer
   x = 17,669.76