Finding the Fourth Proportional to 11,742.82, 17,616.96 and 3,423.72

Step by Step Solution

1. Step 1: Write the proportion equation
   11,742.82 : 17,616.96 = 3,423.72 : x
2. Step 2: Convert to fraction form
   11,742.82/17,616.96 = 3,423.72/x
3. Step 3: Cross multiply
   11,742.82x = 17,616.96 × 3,423.72
4. Step 4: Simplify right side
   11,742.82x = 60,315,538.29
5. Step 5: Solve for x
   x = 60,315,538.29/11,742.82
6. Step 6: Final answer
   x = 5,136.38