Finding the Fourth Proportional to 23,089.99, 31,863.54 and 13,018.34

Step by Step Solution

1. Step 1: Write the proportion equation
   23,089.99 : 31,863.54 = 13,018.34 : x
2. Step 2: Convert to fraction form
   23,089.99/31,863.54 = 13,018.34/x
3. Step 3: Cross multiply
   23,089.99x = 31,863.54 × 13,018.34
4. Step 4: Simplify right side
   23,089.99x = 414,810,406.31
5. Step 5: Solve for x
   x = 414,810,406.31/23,089.99
6. Step 6: Final answer
   x = 17,964.95