Finding the Fourth Proportional to 9,388.24, 12,956.34 and 5,196.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.24 : 12,956.34 = 5,196.76 : x
2. Step 2: Convert to fraction form
   9,388.24/12,956.34 = 5,196.76/x
3. Step 3: Cross multiply
   9,388.24x = 12,956.34 × 5,196.76
4. Step 4: Simplify right side
   9,388.24x = 67,330,989.46
5. Step 5: Solve for x
   x = 67,330,989.46/9,388.24
6. Step 6: Final answer
   x = 7,171.84