Finding the Fourth Proportional to 23,826.28, 32,878.18 and 13,216.04

Step by Step Solution

1. Step 1: Write the proportion equation
   23,826.28 : 32,878.18 = 13,216.04 : x
2. Step 2: Convert to fraction form
   23,826.28/32,878.18 = 13,216.04/x
3. Step 3: Cross multiply
   23,826.28x = 32,878.18 × 13,216.04
4. Step 4: Simplify right side
   23,826.28x = 434,519,342.01
5. Step 5: Solve for x
   x = 434,519,342.01/23,826.28
6. Step 6: Final answer
   x = 18,236.98