Finding the Fourth Proportional to 16,290.66, 22,499.53 and 10,976.25

Step by Step Solution

1. Step 1: Write the proportion equation
   16,290.66 : 22,499.53 = 10,976.25 : x
2. Step 2: Convert to fraction form
   16,290.66/22,499.53 = 10,976.25/x
3. Step 3: Cross multiply
   16,290.66x = 22,499.53 × 10,976.25
4. Step 4: Simplify right side
   16,290.66x = 246,960,438.72
5. Step 5: Solve for x
   x = 246,960,438.72/16,290.66
6. Step 6: Final answer
   x = 15,159.63