Finding the Fourth Proportional to 9,267.12, 12,789.86 and 5,289.03

Step by Step Solution

1. Step 1: Write the proportion equation
   9,267.12 : 12,789.86 = 5,289.03 : x
2. Step 2: Convert to fraction form
   9,267.12/12,789.86 = 5,289.03/x
3. Step 3: Cross multiply
   9,267.12x = 12,789.86 × 5,289.03
4. Step 4: Simplify right side
   9,267.12x = 67,645,926.79
5. Step 5: Solve for x
   x = 67,645,926.79/9,267.12
6. Step 6: Final answer
   x = 7,299.56