Finding the Fourth Proportional to 12,496.92, 17,251.29 and 7,784.34

Step by Step Solution

1. Step 1: Write the proportion equation
   12,496.92 : 17,251.29 = 7,784.34 : x
2. Step 2: Convert to fraction form
   12,496.92/17,251.29 = 7,784.34/x
3. Step 3: Cross multiply
   12,496.92x = 17,251.29 × 7,784.34
4. Step 4: Simplify right side
   12,496.92x = 134,289,906.80
5. Step 5: Solve for x
   x = 134,289,906.80/12,496.92
6. Step 6: Final answer
   x = 10,745.84