Finding the Fourth Proportional to 9,298.95, 12,828.25 and 5,519.97

Step by Step Solution

1. Step 1: Write the proportion equation
   9,298.95 : 12,828.25 = 5,519.97 : x
2. Step 2: Convert to fraction form
   9,298.95/12,828.25 = 5,519.97/x
3. Step 3: Cross multiply
   9,298.95x = 12,828.25 × 5,519.97
4. Step 4: Simplify right side
   9,298.95x = 70,811,541.35
5. Step 5: Solve for x
   x = 70,811,541.35/9,298.95
6. Step 6: Final answer
   x = 7,615.00