Finding the Fourth Proportional to 16,500, 22,760.69 and 9,779.03

Step by Step Solution

1. Step 1: Write the proportion equation
   16,500 : 22,760.69 = 9,779.03 : x
2. Step 2: Convert to fraction form
   16,500/22,760.69 = 9,779.03/x
3. Step 3: Cross multiply
   16,500x = 22,760.69 × 9,779.03
4. Step 4: Simplify right side
   16,500x = 222,577,307.63
5. Step 5: Solve for x
   x = 222,577,307.63/16,500
6. Step 6: Final answer
   x = 13,489.53