Finding the Fourth Proportional to 12,111.65, 16,714.76 and 8,071.46

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.65 : 16,714.76 = 8,071.46 : x
2. Step 2: Convert to fraction form
   12,111.65/16,714.76 = 8,071.46/x
3. Step 3: Cross multiply
   12,111.65x = 16,714.76 × 8,071.46
4. Step 4: Simplify right side
   12,111.65x = 134,912,516.75
5. Step 5: Solve for x
   x = 134,912,516.75/12,111.65
6. Step 6: Final answer
   x = 11,139.07