Finding the Fourth Proportional to 16,200.90, 22,356.72 and 9,127.08

Step by Step Solution

1. Step 1: Write the proportion equation
   16,200.90 : 22,356.72 = 9,127.08 : x
2. Step 2: Convert to fraction form
   16,200.90/22,356.72 = 9,127.08/x
3. Step 3: Cross multiply
   16,200.90x = 22,356.72 × 9,127.08
4. Step 4: Simplify right side
   16,200.90x = 204,051,571.98
5. Step 5: Solve for x
   x = 204,051,571.98/16,200.90
6. Step 6: Final answer
   x = 12,595.08