Finding the Fourth Proportional to 9,997.05, 13,795.59 and 5,520.53

Step by Step Solution

1. Step 1: Write the proportion equation
   9,997.05 : 13,795.59 = 5,520.53 : x
2. Step 2: Convert to fraction form
   9,997.05/13,795.59 = 5,520.53/x
3. Step 3: Cross multiply
   9,997.05x = 13,795.59 × 5,520.53
4. Step 4: Simplify right side
   9,997.05x = 76,158,968.46
5. Step 5: Solve for x
   x = 76,158,968.46/9,997.05
6. Step 6: Final answer
   x = 7,618.14