Finding the Fourth Proportional to 23,016.76, 31,758.36 and 13,454.79

Step by Step Solution

1. Step 1: Write the proportion equation
   23,016.76 : 31,758.36 = 13,454.79 : x
2. Step 2: Convert to fraction form
   23,016.76/31,758.36 = 13,454.79/x
3. Step 3: Cross multiply
   23,016.76x = 31,758.36 × 13,454.79
4. Step 4: Simplify right side
   23,016.76x = 427,302,064.54
5. Step 5: Solve for x
   x = 427,302,064.54/23,016.76
6. Step 6: Final answer
   x = 18,564.82