Finding the Fourth Proportional to 11,318.05, 16,981.71 and 5,073.87

Step by Step Solution

1. Step 1: Write the proportion equation
   11,318.05 : 16,981.71 = 5,073.87 : x
2. Step 2: Convert to fraction form
   11,318.05/16,981.71 = 5,073.87/x
3. Step 3: Cross multiply
   11,318.05x = 16,981.71 × 5,073.87
4. Step 4: Simplify right side
   11,318.05x = 86,162,988.92
5. Step 5: Solve for x
   x = 86,162,988.92/11,318.05
6. Step 6: Final answer
   x = 7,612.88