Finding the Fourth Proportional to 9,289.65, 12,819.61 and 5,097.90

Step by Step Solution

1. Step 1: Write the proportion equation
   9,289.65 : 12,819.61 = 5,097.90 : x
2. Step 2: Convert to fraction form
   9,289.65/12,819.61 = 5,097.90/x
3. Step 3: Cross multiply
   9,289.65x = 12,819.61 × 5,097.90
4. Step 4: Simplify right side
   9,289.65x = 65,353,089.82
5. Step 5: Solve for x
   x = 65,353,089.82/9,289.65
6. Step 6: Final answer
   x = 7,035.04