Finding the Fourth Proportional to 12,680.92, 17,499.72 and 7,091.92

Step by Step Solution

1. Step 1: Write the proportion equation
   12,680.92 : 17,499.72 = 7,091.92 : x
2. Step 2: Convert to fraction form
   12,680.92/17,499.72 = 7,091.92/x
3. Step 3: Cross multiply
   12,680.92x = 17,499.72 × 7,091.92
4. Step 4: Simplify right side
   12,680.92x = 124,106,614.26
5. Step 5: Solve for x
   x = 124,106,614.26/12,680.92
6. Step 6: Final answer
   x = 9,786.88