Finding the Fourth Proportional to 9,339.08, 12,890.22 and 5,564.48

Step by Step Solution

1. Step 1: Write the proportion equation
   9,339.08 : 12,890.22 = 5,564.48 : x
2. Step 2: Convert to fraction form
   9,339.08/12,890.22 = 5,564.48/x
3. Step 3: Cross multiply
   9,339.08x = 12,890.22 × 5,564.48
4. Step 4: Simplify right side
   9,339.08x = 71,727,371.39
5. Step 5: Solve for x
   x = 71,727,371.39/9,339.08
6. Step 6: Final answer
   x = 7,680.35