Finding the Fourth Proportional to 8,112.88, 12,167.49 and 3,726.12

Step by Step Solution

1. Step 1: Write the proportion equation
   8,112.88 : 12,167.49 = 3,726.12 : x
2. Step 2: Convert to fraction form
   8,112.88/12,167.49 = 3,726.12/x
3. Step 3: Cross multiply
   8,112.88x = 12,167.49 × 3,726.12
4. Step 4: Simplify right side
   8,112.88x = 45,337,509.21
5. Step 5: Solve for x
   x = 45,337,509.21/8,112.88
6. Step 6: Final answer
   x = 5,588.34