Finding the Fourth Proportional to 25,131.39, 34,678.94 and 15,057.96

Step by Step Solution

1. Step 1: Write the proportion equation
   25,131.39 : 34,678.94 = 15,057.96 : x
2. Step 2: Convert to fraction form
   25,131.39/34,678.94 = 15,057.96/x
3. Step 3: Cross multiply
   25,131.39x = 34,678.94 × 15,057.96
4. Step 4: Simplify right side
   25,131.39x = 522,194,016.07
5. Step 5: Solve for x
   x = 522,194,016.07/25,131.39
6. Step 6: Final answer
   x = 20,778.56