Finding the Fourth Proportional to 16,012.72, 22,077.56 and 12,240.56

Step by Step Solution

1. Step 1: Write the proportion equation
   16,012.72 : 22,077.56 = 12,240.56 : x
2. Step 2: Convert to fraction form
   16,012.72/22,077.56 = 12,240.56/x
3. Step 3: Cross multiply
   16,012.72x = 22,077.56 × 12,240.56
4. Step 4: Simplify right side
   16,012.72x = 270,241,697.83
5. Step 5: Solve for x
   x = 270,241,697.83/16,012.72
6. Step 6: Final answer
   x = 16,876.69