Finding the Fourth Proportional to 16,590.72, 22,880.16 and 10,992

Step by Step Solution

1. Step 1: Write the proportion equation
   16,590.72 : 22,880.16 = 10,992 : x
2. Step 2: Convert to fraction form
   16,590.72/22,880.16 = 10,992/x
3. Step 3: Cross multiply
   16,590.72x = 22,880.16 × 10,992
4. Step 4: Simplify right side
   16,590.72x = 251,498,718.72
5. Step 5: Solve for x
   x = 251,498,718.72/16,590.72
6. Step 6: Final answer
   x = 15,159.00