Finding the Fourth Proportional to 10,961.89, 16,445.53 and 3,171.49

Step by Step Solution

1. Step 1: Write the proportion equation
   10,961.89 : 16,445.53 = 3,171.49 : x
2. Step 2: Convert to fraction form
   10,961.89/16,445.53 = 3,171.49/x
3. Step 3: Cross multiply
   10,961.89x = 16,445.53 × 3,171.49
4. Step 4: Simplify right side
   10,961.89x = 52,156,796.79
5. Step 5: Solve for x
   x = 52,156,796.79/10,961.89
6. Step 6: Final answer
   x = 4,758.01