Finding the Fourth Proportional to 25,719.81, 35,491 and 16,288.17

Step by Step Solution

1. Step 1: Write the proportion equation
   25,719.81 : 35,491 = 16,288.17 : x
2. Step 2: Convert to fraction form
   25,719.81/35,491 = 16,288.17/x
3. Step 3: Cross multiply
   25,719.81x = 35,491 × 16,288.17
4. Step 4: Simplify right side
   25,719.81x = 578,083,441.47
5. Step 5: Solve for x
   x = 578,083,441.47/25,719.81
6. Step 6: Final answer
   x = 22,476.19