Finding the Fourth Proportional to 22,766.13, 31,414.73 and 13,815.81

Step by Step Solution

1. Step 1: Write the proportion equation
   22,766.13 : 31,414.73 = 13,815.81 : x
2. Step 2: Convert to fraction form
   22,766.13/31,414.73 = 13,815.81/x
3. Step 3: Cross multiply
   22,766.13x = 31,414.73 × 13,815.81
4. Step 4: Simplify right side
   22,766.13x = 434,019,871.80
5. Step 5: Solve for x
   x = 434,019,871.80/22,766.13
6. Step 6: Final answer
   x = 19,064.28