Finding the Fourth Proportional to 9,048.36, 12,488.94 and 5,513.52

Step by Step Solution

1. Step 1: Write the proportion equation
   9,048.36 : 12,488.94 = 5,513.52 : x
2. Step 2: Convert to fraction form
   9,048.36/12,488.94 = 5,513.52/x
3. Step 3: Cross multiply
   9,048.36x = 12,488.94 × 5,513.52
4. Step 4: Simplify right side
   9,048.36x = 68,858,020.47
5. Step 5: Solve for x
   x = 68,858,020.47/9,048.36
6. Step 6: Final answer
   x = 7,610.00