Finding the Fourth Proportional to 25,760.82, 35,550.31 and 15,005.42

Step by Step Solution

1. Step 1: Write the proportion equation
   25,760.82 : 35,550.31 = 15,005.42 : x
2. Step 2: Convert to fraction form
   25,760.82/35,550.31 = 15,005.42/x
3. Step 3: Cross multiply
   25,760.82x = 35,550.31 × 15,005.42
4. Step 4: Simplify right side
   25,760.82x = 533,447,314.29
5. Step 5: Solve for x
   x = 533,447,314.29/25,760.82
6. Step 6: Final answer
   x = 20,707.70