Finding the Fourth Proportional to 23,089.82, 31,863.58 and 13,018.28

Step by Step Solution

1. Step 1: Write the proportion equation
   23,089.82 : 31,863.58 = 13,018.28 : x
2. Step 2: Convert to fraction form
   23,089.82/31,863.58 = 13,018.28/x
3. Step 3: Cross multiply
   23,089.82x = 31,863.58 × 13,018.28
4. Step 4: Simplify right side
   23,089.82x = 414,808,814.38
5. Step 5: Solve for x
   x = 414,808,814.38/23,089.82
6. Step 6: Final answer
   x = 17,965.01