Finding the Fourth Proportional to 25,570.38, 38,330.78 and 13,096.29

Step by Step Solution

1. Step 1: Write the proportion equation
   25,570.38 : 38,330.78 = 13,096.29 : x
2. Step 2: Convert to fraction form
   25,570.38/38,330.78 = 13,096.29/x
3. Step 3: Cross multiply
   25,570.38x = 38,330.78 × 13,096.29
4. Step 4: Simplify right side
   25,570.38x = 501,990,945.32
5. Step 5: Solve for x
   x = 501,990,945.32/25,570.38
6. Step 6: Final answer
   x = 19,631.74