Finding the Fourth Proportional to 11,039.78, 16,561.04 and 3,543.84

Step by Step Solution

1. Step 1: Write the proportion equation
   11,039.78 : 16,561.04 = 3,543.84 : x
2. Step 2: Convert to fraction form
   11,039.78/16,561.04 = 3,543.84/x
3. Step 3: Cross multiply
   11,039.78x = 16,561.04 × 3,543.84
4. Step 4: Simplify right side
   11,039.78x = 58,689,684.85
5. Step 5: Solve for x
   x = 58,689,684.85/11,039.78
6. Step 6: Final answer
   x = 5,316.20