Finding the Fourth Proportional to 9,710.34, 13,400.22 and 5,518.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,710.34 : 13,400.22 = 5,518.59 : x
2. Step 2: Convert to fraction form
   9,710.34/13,400.22 = 5,518.59/x
3. Step 3: Cross multiply
   9,710.34x = 13,400.22 × 5,518.59
4. Step 4: Simplify right side
   9,710.34x = 73,950,320.09
5. Step 5: Solve for x
   x = 73,950,320.09/9,710.34
6. Step 6: Final answer
   x = 7,615.63