Finding the Fourth Proportional to 11,742.18, 17,613.21 and 3,422.43

Step by Step Solution

1. Step 1: Write the proportion equation
   11,742.18 : 17,613.21 = 3,422.43 : x
2. Step 2: Convert to fraction form
   11,742.18/17,613.21 = 3,422.43/x
3. Step 3: Cross multiply
   11,742.18x = 17,613.21 × 3,422.43
4. Step 4: Simplify right side
   11,742.18x = 60,279,978.30
5. Step 5: Solve for x
   x = 60,279,978.30/11,742.18
6. Step 6: Final answer
   x = 5,133.63