Finding the Fourth Proportional to 12,111.68, 16,713.97 and 7,076.67

Step by Step Solution

1. Step 1: Write the proportion equation
   12,111.68 : 16,713.97 = 7,076.67 : x
2. Step 2: Convert to fraction form
   12,111.68/16,713.97 = 7,076.67/x
3. Step 3: Cross multiply
   12,111.68x = 16,713.97 × 7,076.67
4. Step 4: Simplify right side
   12,111.68x = 118,279,189.61
5. Step 5: Solve for x
   x = 118,279,189.61/12,111.68
6. Step 6: Final answer
   x = 9,765.72