Finding the Fourth Proportional to 9,500.63, 13,107.66 and 5,518.47

Step by Step Solution

1. Step 1: Write the proportion equation
   9,500.63 : 13,107.66 = 5,518.47 : x
2. Step 2: Convert to fraction form
   9,500.63/13,107.66 = 5,518.47/x
3. Step 3: Cross multiply
   9,500.63x = 13,107.66 × 5,518.47
4. Step 4: Simplify right side
   9,500.63x = 72,334,228.48
5. Step 5: Solve for x
   x = 72,334,228.48/9,500.63
6. Step 6: Final answer
   x = 7,613.62