Finding the Fourth Proportional to 9,672.48, 14,507.59 and 2,653.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,672.48 : 14,507.59 = 2,653.20 : x
2. Step 2: Convert to fraction form
   9,672.48/14,507.59 = 2,653.20/x
3. Step 3: Cross multiply
   9,672.48x = 14,507.59 × 2,653.20
4. Step 4: Simplify right side
   9,672.48x = 38,491,594.33
5. Step 5: Solve for x
   x = 38,491,594.33/9,672.48
6. Step 6: Final answer
   x = 3,979.50