Finding the Fourth Proportional to 16,885.56, 25,328.52 and 5,198.88

Step by Step Solution

1. Step 1: Write the proportion equation
   16,885.56 : 25,328.52 = 5,198.88 : x
2. Step 2: Convert to fraction form
   16,885.56/25,328.52 = 5,198.88/x
3. Step 3: Cross multiply
   16,885.56x = 25,328.52 × 5,198.88
4. Step 4: Simplify right side
   16,885.56x = 131,679,936.06
5. Step 5: Solve for x
   x = 131,679,936.06/16,885.56
6. Step 6: Final answer
   x = 7,798.38