Finding the Fourth Proportional to 9,231.90, 12,735.03 and 5,505.18

Step by Step Solution

1. Step 1: Write the proportion equation
   9,231.90 : 12,735.03 = 5,505.18 : x
2. Step 2: Convert to fraction form
   9,231.90/12,735.03 = 5,505.18/x
3. Step 3: Cross multiply
   9,231.90x = 12,735.03 × 5,505.18
4. Step 4: Simplify right side
   9,231.90x = 70,108,632.46
5. Step 5: Solve for x
   x = 70,108,632.46/9,231.90
6. Step 6: Final answer
   x = 7,594.17