Finding the Fourth Proportional to 9,016.99, 12,435.36 and 7,509.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,016.99 : 12,435.36 = 7,509.53 : x
2. Step 2: Convert to fraction form
   9,016.99/12,435.36 = 7,509.53/x
3. Step 3: Cross multiply
   9,016.99x = 12,435.36 × 7,509.53
4. Step 4: Simplify right side
   9,016.99x = 93,383,671.43
5. Step 5: Solve for x
   x = 93,383,671.43/9,016.99
6. Step 6: Final answer
   x = 10,356.41