Finding the Fourth Proportional to 12,108.86, 16,710.55 and 6,804.17

Step by Step Solution

1. Step 1: Write the proportion equation
   12,108.86 : 16,710.55 = 6,804.17 : x
2. Step 2: Convert to fraction form
   12,108.86/16,710.55 = 6,804.17/x
3. Step 3: Cross multiply
   12,108.86x = 16,710.55 × 6,804.17
4. Step 4: Simplify right side
   12,108.86x = 113,701,423.37
5. Step 5: Solve for x
   x = 113,701,423.37/12,108.86
6. Step 6: Final answer
   x = 9,389.94