Finding the Fourth Proportional to 8,109.59, 12,167.12 and 8,054.92

Step by Step Solution

1. Step 1: Write the proportion equation
   8,109.59 : 12,167.12 = 8,054.92 : x
2. Step 2: Convert to fraction form
   8,109.59/12,167.12 = 8,054.92/x
3. Step 3: Cross multiply
   8,109.59x = 12,167.12 × 8,054.92
4. Step 4: Simplify right side
   8,109.59x = 98,005,167.95
5. Step 5: Solve for x
   x = 98,005,167.95/8,109.59
6. Step 6: Final answer
   x = 12,085.09