Finding the Fourth Proportional to 11,005.53, 16,498.31 and 3,983.91

Step by Step Solution

1. Step 1: Write the proportion equation
   11,005.53 : 16,498.31 = 3,983.91 : x
2. Step 2: Convert to fraction form
   11,005.53/16,498.31 = 3,983.91/x
3. Step 3: Cross multiply
   11,005.53x = 16,498.31 × 3,983.91
4. Step 4: Simplify right side
   11,005.53x = 65,727,762.27
5. Step 5: Solve for x
   x = 65,727,762.27/11,005.53
6. Step 6: Final answer
   x = 5,972.25