Finding the Fourth Proportional to 16,498.44, 22,757.77 and 9,779.57

Step by Step Solution

1. Step 1: Write the proportion equation
   16,498.44 : 22,757.77 = 9,779.57 : x
2. Step 2: Convert to fraction form
   16,498.44/22,757.77 = 9,779.57/x
3. Step 3: Cross multiply
   16,498.44x = 22,757.77 × 9,779.57
4. Step 4: Simplify right side
   16,498.44x = 222,561,133.53
5. Step 5: Solve for x
   x = 222,561,133.53/16,498.44
6. Step 6: Final answer
   x = 13,489.83