Finding the Fourth Proportional to 9,270.72, 12,789.84 and 5,291.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,270.72 : 12,789.84 = 5,291.04 : x
2. Step 2: Convert to fraction form
   9,270.72/12,789.84 = 5,291.04/x
3. Step 3: Cross multiply
   9,270.72x = 12,789.84 × 5,291.04
4. Step 4: Simplify right side
   9,270.72x = 67,671,555.03
5. Step 5: Solve for x
   x = 67,671,555.03/9,270.72
6. Step 6: Final answer
   x = 7,299.49