Finding the Fourth Proportional to 12,646.72, 17,453.42 and 6,981.94

Step by Step Solution

1. Step 1: Write the proportion equation
   12,646.72 : 17,453.42 = 6,981.94 : x
2. Step 2: Convert to fraction form
   12,646.72/17,453.42 = 6,981.94/x
3. Step 3: Cross multiply
   12,646.72x = 17,453.42 × 6,981.94
4. Step 4: Simplify right side
   12,646.72x = 121,858,731.23
5. Step 5: Solve for x
   x = 121,858,731.23/12,646.72
6. Step 6: Final answer
   x = 9,635.60