Finding the Fourth Proportional to 9,629.34, 13,288.32 and 5,380.13

Step by Step Solution

1. Step 1: Write the proportion equation
   9,629.34 : 13,288.32 = 5,380.13 : x
2. Step 2: Convert to fraction form
   9,629.34/13,288.32 = 5,380.13/x
3. Step 3: Cross multiply
   9,629.34x = 13,288.32 × 5,380.13
4. Step 4: Simplify right side
   9,629.34x = 71,492,822.64
5. Step 5: Solve for x
   x = 71,492,822.64/9,629.34
6. Step 6: Final answer
   x = 7,424.48