Finding the Fourth Proportional to 9,499.04, 13,106.60 and 5,518.10

Step by Step Solution

1. Step 1: Write the proportion equation
   9,499.04 : 13,106.60 = 5,518.10 : x
2. Step 2: Convert to fraction form
   9,499.04/13,106.60 = 5,518.10/x
3. Step 3: Cross multiply
   9,499.04x = 13,106.60 × 5,518.10
4. Step 4: Simplify right side
   9,499.04x = 72,323,529.46
5. Step 5: Solve for x
   x = 72,323,529.46/9,499.04
6. Step 6: Final answer
   x = 7,613.77