Finding the Fourth Proportional to 22,742.16, 31,384.25 and 13,183.89

Step by Step Solution

1. Step 1: Write the proportion equation
   22,742.16 : 31,384.25 = 13,183.89 : x
2. Step 2: Convert to fraction form
   22,742.16/31,384.25 = 13,183.89/x
3. Step 3: Cross multiply
   22,742.16x = 31,384.25 × 13,183.89
4. Step 4: Simplify right side
   22,742.16x = 413,766,433.81
5. Step 5: Solve for x
   x = 413,766,433.81/22,742.16
6. Step 6: Final answer
   x = 18,193.81