Finding the Fourth Proportional to 9,195.72, 12,690.18 and 5,469

Step by Step Solution

1. Step 1: Write the proportion equation
   9,195.72 : 12,690.18 = 5,469 : x
2. Step 2: Convert to fraction form
   9,195.72/12,690.18 = 5,469/x
3. Step 3: Cross multiply
   9,195.72x = 12,690.18 × 5,469
4. Step 4: Simplify right side
   9,195.72x = 69,402,594.42
5. Step 5: Solve for x
   x = 69,402,594.42/9,195.72
6. Step 6: Final answer
   x = 7,547.27