Finding the Fourth Proportional to 23,177.07, 31,983.98 and 13,105.17

Step by Step Solution

1. Step 1: Write the proportion equation
   23,177.07 : 31,983.98 = 13,105.17 : x
2. Step 2: Convert to fraction form
   23,177.07/31,983.98 = 13,105.17/x
3. Step 3: Cross multiply
   23,177.07x = 31,983.98 × 13,105.17
4. Step 4: Simplify right side
   23,177.07x = 419,155,429.65
5. Step 5: Solve for x
   x = 419,155,429.65/23,177.07
6. Step 6: Final answer
   x = 18,084.92