Finding the Fourth Proportional to 9,239.91, 12,747.89 and 5,260.01

Step by Step Solution

1. Step 1: Write the proportion equation
   9,239.91 : 12,747.89 = 5,260.01 : x
2. Step 2: Convert to fraction form
   9,239.91/12,747.89 = 5,260.01/x
3. Step 3: Cross multiply
   9,239.91x = 12,747.89 × 5,260.01
4. Step 4: Simplify right side
   9,239.91x = 67,054,028.88
5. Step 5: Solve for x
   x = 67,054,028.88/9,239.91
6. Step 6: Final answer
   x = 7,257.00