Finding the Fourth Proportional to 16,665.12, 22,997.52 and 9,591.12

Step by Step Solution

1. Step 1: Write the proportion equation
   16,665.12 : 22,997.52 = 9,591.12 : x
2. Step 2: Convert to fraction form
   16,665.12/22,997.52 = 9,591.12/x
3. Step 3: Cross multiply
   16,665.12x = 22,997.52 × 9,591.12
4. Step 4: Simplify right side
   16,665.12x = 220,571,974.02
5. Step 5: Solve for x
   x = 220,571,974.02/16,665.12
6. Step 6: Final answer
   x = 13,235.55