Finding the Fourth Proportional to 9,997.49, 13,796.37 and 5,521.25

Step by Step Solution

1. Step 1: Write the proportion equation
   9,997.49 : 13,796.37 = 5,521.25 : x
2. Step 2: Convert to fraction form
   9,997.49/13,796.37 = 5,521.25/x
3. Step 3: Cross multiply
   9,997.49x = 13,796.37 × 5,521.25
4. Step 4: Simplify right side
   9,997.49x = 76,173,138.88
5. Step 5: Solve for x
   x = 76,173,138.88/9,997.49
6. Step 6: Final answer
   x = 7,619.23