Finding the Fourth Proportional to 27,826.42, 41,687.34 and 13,770.13

Step by Step Solution

1. Step 1: Write the proportion equation
   27,826.42 : 41,687.34 = 13,770.13 : x
2. Step 2: Convert to fraction form
   27,826.42/41,687.34 = 13,770.13/x
3. Step 3: Cross multiply
   27,826.42x = 41,687.34 × 13,770.13
4. Step 4: Simplify right side
   27,826.42x = 574,040,091.15
5. Step 5: Solve for x
   x = 574,040,091.15/27,826.42
6. Step 6: Final answer
   x = 20,629.32