Finding the Fourth Proportional to 11,035.78, 16,554.18 and 3,640.88

Step by Step Solution

1. Step 1: Write the proportion equation
   11,035.78 : 16,554.18 = 3,640.88 : x
2. Step 2: Convert to fraction form
   11,035.78/16,554.18 = 3,640.88/x
3. Step 3: Cross multiply
   11,035.78x = 16,554.18 × 3,640.88
4. Step 4: Simplify right side
   11,035.78x = 60,271,858.77
5. Step 5: Solve for x
   x = 60,271,858.77/11,035.78
6. Step 6: Final answer
   x = 5,461.50