Finding the Fourth Proportional to 9,148.88, 12,617.94 and 5,609.60

Step by Step Solution

1. Step 1: Write the proportion equation
   9,148.88 : 12,617.94 = 5,609.60 : x
2. Step 2: Convert to fraction form
   9,148.88/12,617.94 = 5,609.60/x
3. Step 3: Cross multiply
   9,148.88x = 12,617.94 × 5,609.60
4. Step 4: Simplify right side
   9,148.88x = 70,781,596.22
5. Step 5: Solve for x
   x = 70,781,596.22/9,148.88
6. Step 6: Final answer
   x = 7,736.64