Finding the Fourth Proportional to 9,555.59, 13,185.99 and 5,576.20

Step by Step Solution

1. Step 1: Write the proportion equation
   9,555.59 : 13,185.99 = 5,576.20 : x
2. Step 2: Convert to fraction form
   9,555.59/13,185.99 = 5,576.20/x
3. Step 3: Cross multiply
   9,555.59x = 13,185.99 × 5,576.20
4. Step 4: Simplify right side
   9,555.59x = 73,527,684.47
5. Step 5: Solve for x
   x = 73,527,684.47/9,555.59
6. Step 6: Final answer
   x = 7,694.73