Finding the Fourth Proportional to 16,561.48, 22,836.18 and 12,077.32

Step by Step Solution

1. Step 1: Write the proportion equation
   16,561.48 : 22,836.18 = 12,077.32 : x
2. Step 2: Convert to fraction form
   16,561.48/22,836.18 = 12,077.32/x
3. Step 3: Cross multiply
   16,561.48x = 22,836.18 × 12,077.32
4. Step 4: Simplify right side
   16,561.48x = 275,799,853.44
5. Step 5: Solve for x
   x = 275,799,853.44/16,561.48
6. Step 6: Final answer
   x = 16,653.09