Finding the Fourth Proportional to 9,800.79, 13,525.15 and 5,324.54

Step by Step Solution

1. Step 1: Write the proportion equation
   9,800.79 : 13,525.15 = 5,324.54 : x
2. Step 2: Convert to fraction form
   9,800.79/13,525.15 = 5,324.54/x
3. Step 3: Cross multiply
   9,800.79x = 13,525.15 × 5,324.54
4. Step 4: Simplify right side
   9,800.79x = 72,015,189.00
5. Step 5: Solve for x
   x = 72,015,189.00/9,800.79
6. Step 6: Final answer
   x = 7,347.90