Finding the Fourth Proportional to 11,089.40, 16,630.52 and 3,691.89

Step by Step Solution

1. Step 1: Write the proportion equation
   11,089.40 : 16,630.52 = 3,691.89 : x
2. Step 2: Convert to fraction form
   11,089.40/16,630.52 = 3,691.89/x
3. Step 3: Cross multiply
   11,089.40x = 16,630.52 × 3,691.89
4. Step 4: Simplify right side
   11,089.40x = 61,398,032.02
5. Step 5: Solve for x
   x = 61,398,032.02/11,089.40
6. Step 6: Final answer
   x = 5,536.64