Finding the Fourth Proportional to 9,418.50, 12,997.52 and 5,169.59

Step by Step Solution

1. Step 1: Write the proportion equation
   9,418.50 : 12,997.52 = 5,169.59 : x
2. Step 2: Convert to fraction form
   9,418.50/12,997.52 = 5,169.59/x
3. Step 3: Cross multiply
   9,418.50x = 12,997.52 × 5,169.59
4. Step 4: Simplify right side
   9,418.50x = 67,191,849.42
5. Step 5: Solve for x
   x = 67,191,849.42/9,418.50
6. Step 6: Final answer
   x = 7,134.03