Finding the Fourth Proportional to 10,940.13, 16,408.35 and 3,543.51

Step by Step Solution

1. Step 1: Write the proportion equation
   10,940.13 : 16,408.35 = 3,543.51 : x
2. Step 2: Convert to fraction form
   10,940.13/16,408.35 = 3,543.51/x
3. Step 3: Cross multiply
   10,940.13x = 16,408.35 × 3,543.51
4. Step 4: Simplify right side
   10,940.13x = 58,143,152.31
5. Step 5: Solve for x
   x = 58,143,152.31/10,940.13
6. Step 6: Final answer
   x = 5,314.67