Finding the Fourth Proportional to 9,722.56, 13,415.61 and 5,530

Step by Step Solution

1. Step 1: Write the proportion equation
   9,722.56 : 13,415.61 = 5,530 : x
2. Step 2: Convert to fraction form
   9,722.56/13,415.61 = 5,530/x
3. Step 3: Cross multiply
   9,722.56x = 13,415.61 × 5,530
4. Step 4: Simplify right side
   9,722.56x = 74,188,323.30
5. Step 5: Solve for x
   x = 74,188,323.30/9,722.56
6. Step 6: Final answer
   x = 7,630.53