Finding the Fourth Proportional to 9,068.05, 12,513.09 and 5,530.57

Step by Step Solution

1. Step 1: Write the proportion equation
   9,068.05 : 12,513.09 = 5,530.57 : x
2. Step 2: Convert to fraction form
   9,068.05/12,513.09 = 5,530.57/x
3. Step 3: Cross multiply
   9,068.05x = 12,513.09 × 5,530.57
4. Step 4: Simplify right side
   9,068.05x = 69,204,520.16
5. Step 5: Solve for x
   x = 69,204,520.16/9,068.05
6. Step 6: Final answer
   x = 7,631.69