Finding the Fourth Proportional to 23,826.24, 32,878.56 and 13,216.32

Step by Step Solution

1. Step 1: Write the proportion equation
   23,826.24 : 32,878.56 = 13,216.32 : x
2. Step 2: Convert to fraction form
   23,826.24/32,878.56 = 13,216.32/x
3. Step 3: Cross multiply
   23,826.24x = 32,878.56 × 13,216.32
4. Step 4: Simplify right side
   23,826.24x = 434,533,570.10
5. Step 5: Solve for x
   x = 434,533,570.10/23,826.24
6. Step 6: Final answer
   x = 18,237.61