Finding the Fourth Proportional to 11,317.50, 16,976.71 and 5,391.34

Step by Step Solution

1. Step 1: Write the proportion equation
   11,317.50 : 16,976.71 = 5,391.34 : x
2. Step 2: Convert to fraction form
   11,317.50/16,976.71 = 5,391.34/x
3. Step 3: Cross multiply
   11,317.50x = 16,976.71 × 5,391.34
4. Step 4: Simplify right side
   11,317.50x = 91,527,215.69
5. Step 5: Solve for x
   x = 91,527,215.69/11,317.50
6. Step 6: Final answer
   x = 8,087.23