Finding the Fourth Proportional to 8,745.91, 12,076.90 and 7,499.32

Step by Step Solution

1. Step 1: Write the proportion equation
   8,745.91 : 12,076.90 = 7,499.32 : x
2. Step 2: Convert to fraction form
   8,745.91/12,076.90 = 7,499.32/x
3. Step 3: Cross multiply
   8,745.91x = 12,076.90 × 7,499.32
4. Step 4: Simplify right side
   8,745.91x = 90,568,488.77
5. Step 5: Solve for x
   x = 90,568,488.77/8,745.91
6. Step 6: Final answer
   x = 10,355.53