Finding the Fourth Proportional to 22,799.68, 31,450.43 and 13,718.72

Step by Step Solution

1. Step 1: Write the proportion equation
   22,799.68 : 31,450.43 = 13,718.72 : x
2. Step 2: Convert to fraction form
   22,799.68/31,450.43 = 13,718.72/x
3. Step 3: Cross multiply
   22,799.68x = 31,450.43 × 13,718.72
4. Step 4: Simplify right side
   22,799.68x = 431,459,501.90
5. Step 5: Solve for x
   x = 431,459,501.90/22,799.68
6. Step 6: Final answer
   x = 18,923.93