Finding the Fourth Proportional to 10,171.91, 15,260.17 and 5,491.83

Step by Step Solution

1. Step 1: Write the proportion equation
   10,171.91 : 15,260.17 = 5,491.83 : x
2. Step 2: Convert to fraction form
   10,171.91/15,260.17 = 5,491.83/x
3. Step 3: Cross multiply
   10,171.91x = 15,260.17 × 5,491.83
4. Step 4: Simplify right side
   10,171.91x = 83,806,245.68
5. Step 5: Solve for x
   x = 83,806,245.68/10,171.91
6. Step 6: Final answer
   x = 8,238.99