Finding the Fourth Proportional to 9,574.68, 13,210.91 and 5,540.88

Step by Step Solution

1. Step 1: Write the proportion equation
   9,574.68 : 13,210.91 = 5,540.88 : x
2. Step 2: Convert to fraction form
   9,574.68/13,210.91 = 5,540.88/x
3. Step 3: Cross multiply
   9,574.68x = 13,210.91 × 5,540.88
4. Step 4: Simplify right side
   9,574.68x = 73,200,080.85
5. Step 5: Solve for x
   x = 73,200,080.85/9,574.68
6. Step 6: Final answer
   x = 7,645.17