Finding the Fourth Proportional to 9,316.24, 12,856.41 and 5,124.49

Step by Step Solution

1. Step 1: Write the proportion equation
   9,316.24 : 12,856.41 = 5,124.49 : x
2. Step 2: Convert to fraction form
   9,316.24/12,856.41 = 5,124.49/x
3. Step 3: Cross multiply
   9,316.24x = 12,856.41 × 5,124.49
4. Step 4: Simplify right side
   9,316.24x = 65,882,544.48
5. Step 5: Solve for x
   x = 65,882,544.48/9,316.24
6. Step 6: Final answer
   x = 7,071.80