Finding the Fourth Proportional to 12,111.53, 16,711.52 and 6,805.62

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.53 : 16,711.52 = 6,805.62 : x
2. Step 2: Convert to fraction form
   12,111.53/16,711.52 = 6,805.62/x
3. Step 3: Cross multiply
   12,111.53x = 16,711.52 × 6,805.62
4. Step 4: Simplify right side
   12,111.53x = 113,732,220.71
5. Step 5: Solve for x
   x = 113,732,220.71/12,111.53
6. Step 6: Final answer
   x = 9,390.41