Finding the Fourth Proportional to 12,710.76, 17,540.82 and 7,045.80

Step by Step Solution

1. Step 1: Write the proportion equation
   12,710.76 : 17,540.82 = 7,045.80 : x
2. Step 2: Convert to fraction form
   12,710.76/17,540.82 = 7,045.80/x
3. Step 3: Cross multiply
   12,710.76x = 17,540.82 × 7,045.80
4. Step 4: Simplify right side
   12,710.76x = 123,589,109.56
5. Step 5: Solve for x
   x = 123,589,109.56/12,710.76
6. Step 6: Final answer
   x = 9,723.19