Finding the Fourth Proportional to 12,834.72, 17,706.06 and 7,245.72

Step by Step Solution

1. Step 1: Write the proportion equation
   12,834.72 : 17,706.06 = 7,245.72 : x
2. Step 2: Convert to fraction form
   12,834.72/17,706.06 = 7,245.72/x
3. Step 3: Cross multiply
   12,834.72x = 17,706.06 × 7,245.72
4. Step 4: Simplify right side
   12,834.72x = 128,293,153.06
5. Step 5: Solve for x
   x = 128,293,153.06/12,834.72
6. Step 6: Final answer
   x = 9,995.79