Finding the Fourth Proportional to 12,109.59, 16,711.61 and 6,804.27

Step by Step Solution

1. Step 1: Write the proportion equation
   12,109.59 : 16,711.61 = 6,804.27 : x
2. Step 2: Convert to fraction form
   12,109.59/16,711.61 = 6,804.27/x
3. Step 3: Cross multiply
   12,109.59x = 16,711.61 × 6,804.27
4. Step 4: Simplify right side
   12,109.59x = 113,710,272.55
5. Step 5: Solve for x
   x = 113,710,272.55/12,109.59
6. Step 6: Final answer
   x = 9,390.10