Finding the Fourth Proportional to 11,087.61, 16,631.55 and 3,692.07

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.61 : 16,631.55 = 3,692.07 : x
2. Step 2: Convert to fraction form
   11,087.61/16,631.55 = 3,692.07/x
3. Step 3: Cross multiply
   11,087.61x = 16,631.55 × 3,692.07
4. Step 4: Simplify right side
   11,087.61x = 61,404,846.81
5. Step 5: Solve for x
   x = 61,404,846.81/11,087.61
6. Step 6: Final answer
   x = 5,538.15