Finding the Fourth Proportional to 9,288.96, 12,818.72 and 5,097.12

Step by Step Solution

1. Step 1: Write the proportion equation
   9,288.96 : 12,818.72 = 5,097.12 : x
2. Step 2: Convert to fraction form
   9,288.96/12,818.72 = 5,097.12/x
3. Step 3: Cross multiply
   9,288.96x = 12,818.72 × 5,097.12
4. Step 4: Simplify right side
   9,288.96x = 65,338,554.09
5. Step 5: Solve for x
   x = 65,338,554.09/9,288.96
6. Step 6: Final answer
   x = 7,034.00