Finding the Fourth Proportional to 12,742.11, 17,584.22 and 7,435.89

Step by Step Solution

1. Step 1: Write the proportion equation
   12,742.11 : 17,584.22 = 7,435.89 : x
2. Step 2: Convert to fraction form
   12,742.11/17,584.22 = 7,435.89/x
3. Step 3: Cross multiply
   12,742.11x = 17,584.22 × 7,435.89
4. Step 4: Simplify right side
   12,742.11x = 130,754,344.25
5. Step 5: Solve for x
   x = 130,754,344.25/12,742.11
6. Step 6: Final answer
   x = 10,261.59