Finding the Fourth Proportional to 11,662.92, 17,498.16 and 3,872.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,662.92 : 17,498.16 = 3,872.88 : x
2. Step 2: Convert to fraction form
   11,662.92/17,498.16 = 3,872.88/x
3. Step 3: Cross multiply
   11,662.92x = 17,498.16 × 3,872.88
4. Step 4: Simplify right side
   11,662.92x = 67,768,273.90
5. Step 5: Solve for x
   x = 67,768,273.90/11,662.92
6. Step 6: Final answer
   x = 5,810.58