Finding the Fourth Proportional to 9,281.69, 12,808.20 and 5,505.23

Step by Step Solution

1. Step 1: Write the proportion equation
   9,281.69 : 12,808.20 = 5,505.23 : x
2. Step 2: Convert to fraction form
   9,281.69/12,808.20 = 5,505.23/x
3. Step 3: Cross multiply
   9,281.69x = 12,808.20 × 5,505.23
4. Step 4: Simplify right side
   9,281.69x = 70,512,086.89
5. Step 5: Solve for x
   x = 70,512,086.89/9,281.69
6. Step 6: Final answer
   x = 7,596.90