Finding the Fourth Proportional to 12,725.91, 17,561.61 and 7,060.64

Step by Step Solution

1. Step 1: Write the proportion equation
   12,725.91 : 17,561.61 = 7,060.64 : x
2. Step 2: Convert to fraction form
   12,725.91/17,561.61 = 7,060.64/x
3. Step 3: Cross multiply
   12,725.91x = 17,561.61 × 7,060.64
4. Step 4: Simplify right side
   12,725.91x = 123,996,118.22
5. Step 5: Solve for x
   x = 123,996,118.22/12,725.91
6. Step 6: Final answer
   x = 9,743.60