Finding the Fourth Proportional to 16,182.72, 22,326.48 and 12,407.04

Step by Step Solution

1. Step 1: Write the proportion equation
   16,182.72 : 22,326.48 = 12,407.04 : x
2. Step 2: Convert to fraction form
   16,182.72/22,326.48 = 12,407.04/x
3. Step 3: Cross multiply
   16,182.72x = 22,326.48 × 12,407.04
4. Step 4: Simplify right side
   16,182.72x = 277,005,530.42
5. Step 5: Solve for x
   x = 277,005,530.42/16,182.72
6. Step 6: Final answer
   x = 17,117.37