Finding the Fourth Proportional to 10,940.56, 16,407.39 and 3,543.31

Step by Step Solution

1. Step 1: Write the proportion equation
   10,940.56 : 16,407.39 = 3,543.31 : x
2. Step 2: Convert to fraction form
   10,940.56/16,407.39 = 3,543.31/x
3. Step 3: Cross multiply
   10,940.56x = 16,407.39 × 3,543.31
4. Step 4: Simplify right side
   10,940.56x = 58,136,387.02
5. Step 5: Solve for x
   x = 58,136,387.02/10,940.56
6. Step 6: Final answer
   x = 5,313.84