Finding the Fourth Proportional to 12,081.72, 16,682.94 and 9,092.40

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.72 : 16,682.94 = 9,092.40 : x
2. Step 2: Convert to fraction form
   12,081.72/16,682.94 = 9,092.40/x
3. Step 3: Cross multiply
   12,081.72x = 16,682.94 × 9,092.40
4. Step 4: Simplify right side
   12,081.72x = 151,687,963.66
5. Step 5: Solve for x
   x = 151,687,963.66/12,081.72
6. Step 6: Final answer
   x = 12,555.16