Finding the Fourth Proportional to 9,623.62, 13,280.76 and 5,644.84

Step by Step Solution

1. Step 1: Write the proportion equation
   9,623.62 : 13,280.76 = 5,644.84 : x
2. Step 2: Convert to fraction form
   9,623.62/13,280.76 = 5,644.84/x
3. Step 3: Cross multiply
   9,623.62x = 13,280.76 × 5,644.84
4. Step 4: Simplify right side
   9,623.62x = 74,967,765.28
5. Step 5: Solve for x
   x = 74,967,765.28/9,623.62
6. Step 6: Final answer
   x = 7,789.98