Finding the Fourth Proportional to 10,971.62, 16,457.79 and 3,180.50

Step by Step Solution

1. Step 1: Write the proportion equation
   10,971.62 : 16,457.79 = 3,180.50 : x
2. Step 2: Convert to fraction form
   10,971.62/16,457.79 = 3,180.50/x
3. Step 3: Cross multiply
   10,971.62x = 16,457.79 × 3,180.50
4. Step 4: Simplify right side
   10,971.62x = 52,344,001.10
5. Step 5: Solve for x
   x = 52,344,001.10/10,971.62
6. Step 6: Final answer
   x = 4,770.85