Finding the Fourth Proportional to 9,229.88, 12,735.33 and 5,451.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,229.88 : 12,735.33 = 5,451.13 : x
2. Step 2: Convert to fraction form
   9,229.88/12,735.33 = 5,451.13/x
3. Step 3: Cross multiply
   9,229.88x = 12,735.33 × 5,451.13
4. Step 4: Simplify right side
   9,229.88x = 69,421,934.90
5. Step 5: Solve for x
   x = 69,421,934.90/9,229.88
6. Step 6: Final answer
   x = 7,521.43