Finding the Fourth Proportional to 16,003.72, 22,085.12 and 9,293.28

Step by Step Solution

1. Step 1: Write the proportion equation
   16,003.72 : 22,085.12 = 9,293.28 : x
2. Step 2: Convert to fraction form
   16,003.72/22,085.12 = 9,293.28/x
3. Step 3: Cross multiply
   16,003.72x = 22,085.12 × 9,293.28
4. Step 4: Simplify right side
   16,003.72x = 205,243,203.99
5. Step 5: Solve for x
   x = 205,243,203.99/16,003.72
6. Step 6: Final answer
   x = 12,824.72