Finding the Fourth Proportional to 9,710.09, 13,399.88 and 5,518.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,710.09 : 13,399.88 = 5,518.34 : x
2. Step 2: Convert to fraction form
   9,710.09/13,399.88 = 5,518.34/x
3. Step 3: Cross multiply
   9,710.09x = 13,399.88 × 5,518.34
4. Step 4: Simplify right side
   9,710.09x = 73,944,999.21
5. Step 5: Solve for x
   x = 73,944,999.21/9,710.09
6. Step 6: Final answer
   x = 7,615.28