Finding the Fourth Proportional to 11,087.52, 16,631.42 and 3,691.98

Step by Step Solution

1. Step 1: Write the proportion equation
   11,087.52 : 16,631.42 = 3,691.98 : x
2. Step 2: Convert to fraction form
   11,087.52/16,631.42 = 3,691.98/x
3. Step 3: Cross multiply
   11,087.52x = 16,631.42 × 3,691.98
4. Step 4: Simplify right side
   11,087.52x = 61,402,851.55
5. Step 5: Solve for x
   x = 61,402,851.55/11,087.52
6. Step 6: Final answer
   x = 5,538.01