Finding the Fourth Proportional to 9,146.52, 12,621.78 and 5,609.16

Step by Step Solution

1. Step 1: Write the proportion equation
   9,146.52 : 12,621.78 = 5,609.16 : x
2. Step 2: Convert to fraction form
   9,146.52/12,621.78 = 5,609.16/x
3. Step 3: Cross multiply
   9,146.52x = 12,621.78 × 5,609.16
4. Step 4: Simplify right side
   9,146.52x = 70,797,583.50
5. Step 5: Solve for x
   x = 70,797,583.50/9,146.52
6. Step 6: Final answer
   x = 7,740.38