Finding the Fourth Proportional to 8,530.05, 12,804.18 and 4,839.48

Step by Step Solution

1. Step 1: Write the proportion equation
   8,530.05 : 12,804.18 = 4,839.48 : x
2. Step 2: Convert to fraction form
   8,530.05/12,804.18 = 4,839.48/x
3. Step 3: Cross multiply
   8,530.05x = 12,804.18 × 4,839.48
4. Step 4: Simplify right side
   8,530.05x = 61,965,573.03
5. Step 5: Solve for x
   x = 61,965,573.03/8,530.05
6. Step 6: Final answer
   x = 7,264.39