Finding the Fourth Proportional to 11,131.73, 16,694.98 and 5,212.69

Step by Step Solution

1. Step 1: Write the proportion equation
   11,131.73 : 16,694.98 = 5,212.69 : x
2. Step 2: Convert to fraction form
   11,131.73/16,694.98 = 5,212.69/x
3. Step 3: Cross multiply
   11,131.73x = 16,694.98 × 5,212.69
4. Step 4: Simplify right side
   11,131.73x = 87,025,700.53
5. Step 5: Solve for x
   x = 87,025,700.53/11,131.73
6. Step 6: Final answer
   x = 7,817.81