Finding the Fourth Proportional to 9,267.37, 12,788.47 and 5,490.89

Step by Step Solution

1. Step 1: Write the proportion equation
   9,267.37 : 12,788.47 = 5,490.89 : x
2. Step 2: Convert to fraction form
   9,267.37/12,788.47 = 5,490.89/x
3. Step 3: Cross multiply
   9,267.37x = 12,788.47 × 5,490.89
4. Step 4: Simplify right side
   9,267.37x = 70,220,004.37
5. Step 5: Solve for x
   x = 70,220,004.37/9,267.37
6. Step 6: Final answer
   x = 7,577.12