Finding the Fourth Proportional to 11,983.02, 16,542.42 and 9,288.16

Step by Step Solution

1. Step 1: Write the proportion equation
   11,983.02 : 16,542.42 = 9,288.16 : x
2. Step 2: Convert to fraction form
   11,983.02/16,542.42 = 9,288.16/x
3. Step 3: Cross multiply
   11,983.02x = 16,542.42 × 9,288.16
4. Step 4: Simplify right side
   11,983.02x = 153,648,643.75
5. Step 5: Solve for x
   x = 153,648,643.75/11,983.02
6. Step 6: Final answer
   x = 12,822.20