Finding the Fourth Proportional to 9,269.84, 12,789.12 and 5,288.08

Step by Step Solution

1. Step 1: Write the proportion equation
   9,269.84 : 12,789.12 = 5,288.08 : x
2. Step 2: Convert to fraction form
   9,269.84/12,789.12 = 5,288.08/x
3. Step 3: Cross multiply
   9,269.84x = 12,789.12 × 5,288.08
4. Step 4: Simplify right side
   9,269.84x = 67,629,889.69
5. Step 5: Solve for x
   x = 67,629,889.69/9,269.84
6. Step 6: Final answer
   x = 7,295.69