Finding the Fourth Proportional to 12,111.91, 16,714.53 and 6,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.91 : 16,714.53 = 6,806.72 : x
2. Step 2: Convert to fraction form
   12,111.91/16,714.53 = 6,806.72/x
3. Step 3: Cross multiply
   12,111.91x = 16,714.53 × 6,806.72
4. Step 4: Simplify right side
   12,111.91x = 113,771,167.43
5. Step 5: Solve for x
   x = 113,771,167.43/12,111.91
6. Step 6: Final answer
   x = 9,393.33