Finding the Fourth Proportional to 16,570, 22,866.96 and 9,118

Step by Step Solution

1. Step 1: Write the proportion equation
   16,570 : 22,866.96 = 9,118 : x
2. Step 2: Convert to fraction form
   16,570/22,866.96 = 9,118/x
3. Step 3: Cross multiply
   16,570x = 22,866.96 × 9,118
4. Step 4: Simplify right side
   16,570x = 208,500,941.28
5. Step 5: Solve for x
   x = 208,500,941.28/16,570
6. Step 6: Final answer
   x = 12,583.04