Finding the Fourth Proportional to 11,091.43, 16,630.62 and 3,693.90

Step by Step Solution

1. Step 1: Write the proportion equation
   11,091.43 : 16,630.62 = 3,693.90 : x
2. Step 2: Convert to fraction form
   11,091.43/16,630.62 = 3,693.90/x
3. Step 3: Cross multiply
   11,091.43x = 16,630.62 × 3,693.90
4. Step 4: Simplify right side
   11,091.43x = 61,431,895.73
5. Step 5: Solve for x
   x = 61,431,895.73/11,091.43
6. Step 6: Final answer
   x = 5,538.68