Finding the Fourth Proportional to 23,074.56, 31,836.31 and 12,999.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,074.56 : 31,836.31 = 12,999.49 : x
2. Step 2: Convert to fraction form
   23,074.56/31,836.31 = 12,999.49/x
3. Step 3: Cross multiply
   23,074.56x = 31,836.31 × 12,999.49
4. Step 4: Simplify right side
   23,074.56x = 413,855,681.39
5. Step 5: Solve for x
   x = 413,855,681.39/23,074.56
6. Step 6: Final answer
   x = 17,935.58