Finding the Fourth Proportional to 23,154, 31,960.35 and 14,429.49

Step by Step Solution

1. Step 1: Write the proportion equation
   23,154 : 31,960.35 = 14,429.49 : x
2. Step 2: Convert to fraction form
   23,154/31,960.35 = 14,429.49/x
3. Step 3: Cross multiply
   23,154x = 31,960.35 × 14,429.49
4. Step 4: Simplify right side
   23,154x = 461,171,550.72
5. Step 5: Solve for x
   x = 461,171,550.72/23,154
6. Step 6: Final answer
   x = 19,917.58