Finding the Fourth Proportional to 12,065.94, 16,650.90 and 7,818.57

Step by Step Solution

1. Step 1: Write the proportion equation
   12,065.94 : 16,650.90 = 7,818.57 : x
2. Step 2: Convert to fraction form
   12,065.94/16,650.90 = 7,818.57/x
3. Step 3: Cross multiply
   12,065.94x = 16,650.90 × 7,818.57
4. Step 4: Simplify right side
   12,065.94x = 130,186,227.21
5. Step 5: Solve for x
   x = 130,186,227.21/12,065.94
6. Step 6: Final answer
   x = 10,789.56