Finding the Fourth Proportional to 9,388.29, 12,956.25 and 5,196.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,388.29 : 12,956.25 = 5,196.54 : x
2. Step 2: Convert to fraction form
   9,388.29/12,956.25 = 5,196.54/x
3. Step 3: Cross multiply
   9,388.29x = 12,956.25 × 5,196.54
4. Step 4: Simplify right side
   9,388.29x = 67,327,671.38
5. Step 5: Solve for x
   x = 67,327,671.38/9,388.29
6. Step 6: Final answer
   x = 7,171.45