Finding the Fourth Proportional to 16,650.57, 22,978.50 and 9,576.99

Step by Step Solution

1. Step 1: Write the proportion equation
   16,650.57 : 22,978.50 = 9,576.99 : x
2. Step 2: Convert to fraction form
   16,650.57/22,978.50 = 9,576.99/x
3. Step 3: Cross multiply
   16,650.57x = 22,978.50 × 9,576.99
4. Step 4: Simplify right side
   16,650.57x = 220,064,864.72
5. Step 5: Solve for x
   x = 220,064,864.72/16,650.57
6. Step 6: Final answer
   x = 13,216.66