Finding the Fourth Proportional to 22,765.63, 31,414.03 and 13,815.31

Step by Step Solution

1. Step 1: Write the proportion equation
   22,765.63 : 31,414.03 = 13,815.31 : x
2. Step 2: Convert to fraction form
   22,765.63/31,414.03 = 13,815.31/x
3. Step 3: Cross multiply
   22,765.63x = 31,414.03 × 13,815.31
4. Step 4: Simplify right side
   22,765.63x = 433,994,562.80
5. Step 5: Solve for x
   x = 433,994,562.80/22,765.63
6. Step 6: Final answer
   x = 19,063.59