Finding the Fourth Proportional to 11,142.64, 16,715.34 and 3,747.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,142.64 : 16,715.34 = 3,747.88 : x
2. Step 2: Convert to fraction form
   11,142.64/16,715.34 = 3,747.88/x
3. Step 3: Cross multiply
   11,142.64x = 16,715.34 × 3,747.88
4. Step 4: Simplify right side
   11,142.64x = 62,647,088.48
5. Step 5: Solve for x
   x = 62,647,088.48/11,142.64
6. Step 6: Final answer
   x = 5,622.28