Finding the Fourth Proportional to 9,311.58, 13,976.58 and 7,577.04

Step by Step Solution

1. Step 1: Write the proportion equation
   9,311.58 : 13,976.58 = 7,577.04 : x
2. Step 2: Convert to fraction form
   9,311.58/13,976.58 = 7,577.04/x
3. Step 3: Cross multiply
   9,311.58x = 13,976.58 × 7,577.04
4. Step 4: Simplify right side
   9,311.58x = 105,901,105.72
5. Step 5: Solve for x
   x = 105,901,105.72/9,311.58
6. Step 6: Final answer
   x = 11,373.05