Finding the Fourth Proportional to 12,306.27, 16,985.43 and 7,826.52

Step by Step Solution

1. Step 1: Write the proportion equation
   12,306.27 : 16,985.43 = 7,826.52 : x
2. Step 2: Convert to fraction form
   12,306.27/16,985.43 = 7,826.52/x
3. Step 3: Cross multiply
   12,306.27x = 16,985.43 × 7,826.52
4. Step 4: Simplify right side
   12,306.27x = 132,936,807.60
5. Step 5: Solve for x
   x = 132,936,807.60/12,306.27
6. Step 6: Final answer
   x = 10,802.36