Finding the Fourth Proportional to 10,993.74, 15,171.38 and 5,957.96

Step by Step Solution

1. Step 1: Write the proportion equation
   10,993.74 : 15,171.38 = 5,957.96 : x
2. Step 2: Convert to fraction form
   10,993.74/15,171.38 = 5,957.96/x
3. Step 3: Cross multiply
   10,993.74x = 15,171.38 × 5,957.96
4. Step 4: Simplify right side
   10,993.74x = 90,390,475.18
5. Step 5: Solve for x
   x = 90,390,475.18/10,993.74
6. Step 6: Final answer
   x = 8,221.99