Finding the Fourth Proportional to 9,509.06, 13,120.91 and 5,530.34

Step by Step Solution

1. Step 1: Write the proportion equation
   9,509.06 : 13,120.91 = 5,530.34 : x
2. Step 2: Convert to fraction form
   9,509.06/13,120.91 = 5,530.34/x
3. Step 3: Cross multiply
   9,509.06x = 13,120.91 × 5,530.34
4. Step 4: Simplify right side
   9,509.06x = 72,563,093.41
5. Step 5: Solve for x
   x = 72,563,093.41/9,509.06
6. Step 6: Final answer
   x = 7,630.94