Finding the Fourth Proportional to 9,419.04, 12,997.74 and 5,227

Step by Step Solution

1. Step 1: Write the proportion equation
   9,419.04 : 12,997.74 = 5,227 : x
2. Step 2: Convert to fraction form
   9,419.04/12,997.74 = 5,227/x
3. Step 3: Cross multiply
   9,419.04x = 12,997.74 × 5,227
4. Step 4: Simplify right side
   9,419.04x = 67,939,186.98
5. Step 5: Solve for x
   x = 67,939,186.98/9,419.04
6. Step 6: Final answer
   x = 7,212.96