Finding the Fourth Proportional to 9,997.02, 13,796.02 and 5,520.76

Step by Step Solution

1. Step 1: Write the proportion equation
   9,997.02 : 13,796.02 = 5,520.76 : x
2. Step 2: Convert to fraction form
   9,997.02/13,796.02 = 5,520.76/x
3. Step 3: Cross multiply
   9,997.02x = 13,796.02 × 5,520.76
4. Step 4: Simplify right side
   9,997.02x = 76,164,487.79
5. Step 5: Solve for x
   x = 76,164,487.79/9,997.02
6. Step 6: Final answer
   x = 7,618.72