Finding the Fourth Proportional to 10,939.23, 16,411.43 and 3,543.67

Step by Step Solution

1. Step 1: Write the proportion equation
   10,939.23 : 16,411.43 = 3,543.67 : x
2. Step 2: Convert to fraction form
   10,939.23/16,411.43 = 3,543.67/x
3. Step 3: Cross multiply
   10,939.23x = 16,411.43 × 3,543.67
4. Step 4: Simplify right side
   10,939.23x = 58,156,692.15
5. Step 5: Solve for x
   x = 58,156,692.15/10,939.23
6. Step 6: Final answer
   x = 5,316.34