Finding the Fourth Proportional to 12,111.92, 16,714.96 and 6,806.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.92 : 16,714.96 = 6,806.72 : x
2. Step 2: Convert to fraction form
   12,111.92/16,714.96 = 6,806.72/x
3. Step 3: Cross multiply
   12,111.92x = 16,714.96 × 6,806.72
4. Step 4: Simplify right side
   12,111.92x = 113,774,052.53
5. Step 5: Solve for x
   x = 113,774,052.53/12,111.92
6. Step 6: Final answer
   x = 9,393.56