Finding the Fourth Proportional to 16,928.00, 25,401.72 and 13,219.82

Step by Step Solution

1. Step 1: Write the proportion equation
   16,928.00 : 25,401.72 = 13,219.82 : x
2. Step 2: Convert to fraction form
   16,928.00/25,401.72 = 13,219.82/x
3. Step 3: Cross multiply
   16,928.00x = 25,401.72 × 13,219.82
4. Step 4: Simplify right side
   16,928.00x = 335,806,074.32
5. Step 5: Solve for x
   x = 335,806,074.32/16,928.00
6. Step 6: Final answer
   x = 19,837.32