Finding the Fourth Proportional to 11,006.16, 16,509.78 and 3,607.62

Step by Step Solution

1. Step 1: Write the proportion equation
   11,006.16 : 16,509.78 = 3,607.62 : x
2. Step 2: Convert to fraction form
   11,006.16/16,509.78 = 3,607.62/x
3. Step 3: Cross multiply
   11,006.16x = 16,509.78 × 3,607.62
4. Step 4: Simplify right side
   11,006.16x = 59,561,012.52
5. Step 5: Solve for x
   x = 59,561,012.52/11,006.16
6. Step 6: Final answer
   x = 5,411.61