Finding the Fourth Proportional to 9,237.77, 12,744.96 and 5,257.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,237.77 : 12,744.96 = 5,257.89 : x
2. Step 2: Convert to fraction form
   9,237.77/12,744.96 = 5,257.89/x
3. Step 3: Cross multiply
   9,237.77x = 12,744.96 × 5,257.89
4. Step 4: Simplify right side
   9,237.77x = 67,011,597.73
5. Step 5: Solve for x
   x = 67,011,597.73/9,237.77
6. Step 6: Final answer
   x = 7,254.09