Finding the Fourth Proportional to 8,530.24, 12,786.56 and 3,602.88

Step by Step Solution

1. Step 1: Write the proportion equation
   8,530.24 : 12,786.56 = 3,602.88 : x
2. Step 2: Convert to fraction form
   8,530.24/12,786.56 = 3,602.88/x
3. Step 3: Cross multiply
   8,530.24x = 12,786.56 × 3,602.88
4. Step 4: Simplify right side
   8,530.24x = 46,068,441.29
5. Step 5: Solve for x
   x = 46,068,441.29/8,530.24
6. Step 6: Final answer
   x = 5,400.60