Finding the Fourth Proportional to 25,804.53, 35,612.31 and 15,196.23

Step by Step Solution

1. Step 1: Write the proportion equation
   25,804.53 : 35,612.31 = 15,196.23 : x
2. Step 2: Convert to fraction form
   25,804.53/35,612.31 = 15,196.23/x
3. Step 3: Cross multiply
   25,804.53x = 35,612.31 × 15,196.23
4. Step 4: Simplify right side
   25,804.53x = 541,172,853.59
5. Step 5: Solve for x
   x = 541,172,853.59/25,804.53
6. Step 6: Final answer
   x = 20,972.01