Finding the Fourth Proportional to 9,797.78, 13,520.83 and 5,548.72

Step by Step Solution

1. Step 1: Write the proportion equation
   9,797.78 : 13,520.83 = 5,548.72 : x
2. Step 2: Convert to fraction form
   9,797.78/13,520.83 = 5,548.72/x
3. Step 3: Cross multiply
   9,797.78x = 13,520.83 × 5,548.72
4. Step 4: Simplify right side
   9,797.78x = 75,023,299.84
5. Step 5: Solve for x
   x = 75,023,299.84/9,797.78
6. Step 6: Final answer
   x = 7,657.17