Finding the Fourth Proportional to 8,749.38, 12,067.30 and 5,605.86

Step by Step Solution

1. Step 1: Write the proportion equation
   8,749.38 : 12,067.30 = 5,605.86 : x
2. Step 2: Convert to fraction form
   8,749.38/12,067.30 = 5,605.86/x
3. Step 3: Cross multiply
   8,749.38x = 12,067.30 × 5,605.86
4. Step 4: Simplify right side
   8,749.38x = 67,647,594.38
5. Step 5: Solve for x
   x = 67,647,594.38/8,749.38
6. Step 6: Final answer
   x = 7,731.70