Finding the Fourth Proportional to 11,815.86, 16,306.43 and 7,034.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,815.86 : 16,306.43 = 7,034.72 : x
2. Step 2: Convert to fraction form
   11,815.86/16,306.43 = 7,034.72/x
3. Step 3: Cross multiply
   11,815.86x = 16,306.43 × 7,034.72
4. Step 4: Simplify right side
   11,815.86x = 114,711,169.25
5. Step 5: Solve for x
   x = 114,711,169.25/11,815.86
6. Step 6: Final answer
   x = 9,708.24