Finding the Fourth Proportional to 10,827.69, 14,934.83 and 9,719.61

Step by Step Solution

1. Step 1: Write the proportion equation
   10,827.69 : 14,934.83 = 9,719.61 : x
2. Step 2: Convert to fraction form
   10,827.69/14,934.83 = 9,719.61/x
3. Step 3: Cross multiply
   10,827.69x = 14,934.83 × 9,719.61
4. Step 4: Simplify right side
   10,827.69x = 145,160,674.42
5. Step 5: Solve for x
   x = 145,160,674.42/10,827.69
6. Step 6: Final answer
   x = 13,406.43