Finding the Fourth Proportional to 22,003.20, 32,983.20 and 10,911.60

Step by Step Solution

1. Step 1: Write the proportion equation
   22,003.20 : 32,983.20 = 10,911.60 : x
2. Step 2: Convert to fraction form
   22,003.20/32,983.20 = 10,911.60/x
3. Step 3: Cross multiply
   22,003.20x = 32,983.20 × 10,911.60
4. Step 4: Simplify right side
   22,003.20x = 359,899,485.12
5. Step 5: Solve for x
   x = 359,899,485.12/22,003.20
6. Step 6: Final answer
   x = 16,356.69