Finding the Fourth Proportional to 11,061.15, 16,591.92 and 3,665.64

Step by Step Solution

1. Step 1: Write the proportion equation
   11,061.15 : 16,591.92 = 3,665.64 : x
2. Step 2: Convert to fraction form
   11,061.15/16,591.92 = 3,665.64/x
3. Step 3: Cross multiply
   11,061.15x = 16,591.92 × 3,665.64
4. Step 4: Simplify right side
   11,061.15x = 60,820,005.63
5. Step 5: Solve for x
   x = 60,820,005.63/11,061.15
6. Step 6: Final answer
   x = 5,498.52