Finding the Fourth Proportional to 12,715.04, 17,546.72 and 7,747.04

Step by Step Solution

1. Step 1: Write the proportion equation
   12,715.04 : 17,546.72 = 7,747.04 : x
2. Step 2: Convert to fraction form
   12,715.04/17,546.72 = 7,747.04/x
3. Step 3: Cross multiply
   12,715.04x = 17,546.72 × 7,747.04
4. Step 4: Simplify right side
   12,715.04x = 135,935,141.71
5. Step 5: Solve for x
   x = 135,935,141.71/12,715.04
6. Step 6: Final answer
   x = 10,690.89