Finding the Fourth Proportional to 12,081.50, 16,672.52 and 7,049.20

Step by Step Solution

1. Step 1: Write the proportion equation
   12,081.50 : 16,672.52 = 7,049.20 : x
2. Step 2: Convert to fraction form
   12,081.50/16,672.52 = 7,049.20/x
3. Step 3: Cross multiply
   12,081.50x = 16,672.52 × 7,049.20
4. Step 4: Simplify right side
   12,081.50x = 117,527,927.98
5. Step 5: Solve for x
   x = 117,527,927.98/12,081.50
6. Step 6: Final answer
   x = 9,727.93