Finding the Fourth Proportional to 25,268.82, 34,871.10 and 13,938.72

Step by Step Solution

1. Step 1: Write the proportion equation
   25,268.82 : 34,871.10 = 13,938.72 : x
2. Step 2: Convert to fraction form
   25,268.82/34,871.10 = 13,938.72/x
3. Step 3: Cross multiply
   25,268.82x = 34,871.10 × 13,938.72
4. Step 4: Simplify right side
   25,268.82x = 486,058,498.99
5. Step 5: Solve for x
   x = 486,058,498.99/25,268.82
6. Step 6: Final answer
   x = 19,235.50