Finding the Fourth Proportional to 11,091.63, 16,631.83 and 3,693.50

Step by Step Solution

1. Step 1: Write the proportion equation
   11,091.63 : 16,631.83 = 3,693.50 : x
2. Step 2: Convert to fraction form
   11,091.63/16,631.83 = 3,693.50/x
3. Step 3: Cross multiply
   11,091.63x = 16,631.83 × 3,693.50
4. Step 4: Simplify right side
   11,091.63x = 61,429,647.93
5. Step 5: Solve for x
   x = 61,429,647.93/11,091.63
6. Step 6: Final answer
   x = 5,538.38