Finding the Fourth Proportional to 23,185.58, 31,996.67 and 13,113.53

Step by Step Solution

1. Step 1: Write the proportion equation
   23,185.58 : 31,996.67 = 13,113.53 : x
2. Step 2: Convert to fraction form
   23,185.58/31,996.67 = 13,113.53/x
3. Step 3: Cross multiply
   23,185.58x = 31,996.67 × 13,113.53
4. Step 4: Simplify right side
   23,185.58x = 419,589,260.15
5. Step 5: Solve for x
   x = 419,589,260.15/23,185.58
6. Step 6: Final answer
   x = 18,097.00