Finding the Fourth Proportional to 7,680.04, 10,584.42 and 5,580.52

Step by Step Solution

1. Step 1: Write the proportion equation
   7,680.04 : 10,584.42 = 5,580.52 : x
2. Step 2: Convert to fraction form
   7,680.04/10,584.42 = 5,580.52/x
3. Step 3: Cross multiply
   7,680.04x = 10,584.42 × 5,580.52
4. Step 4: Simplify right side
   7,680.04x = 59,066,567.50
5. Step 5: Solve for x
   x = 59,066,567.50/7,680.04
6. Step 6: Final answer
   x = 7,690.92