Finding the Fourth Proportional to 23,179.18, 31,988.89 and 13,107.71

Step by Step Solution

1. Step 1: Write the proportion equation
   23,179.18 : 31,988.89 = 13,107.71 : x
2. Step 2: Convert to fraction form
   23,179.18/31,988.89 = 13,107.71/x
3. Step 3: Cross multiply
   23,179.18x = 31,988.89 × 13,107.71
4. Step 4: Simplify right side
   23,179.18x = 419,301,093.34
5. Step 5: Solve for x
   x = 419,301,093.34/23,179.18
6. Step 6: Final answer
   x = 18,089.56