Finding the Fourth Proportional to 10,761.58, 16,142.76 and 2,971

Step by Step Solution

1. Step 1: Write the proportion equation
   10,761.58 : 16,142.76 = 2,971 : x
2. Step 2: Convert to fraction form
   10,761.58/16,142.76 = 2,971/x
3. Step 3: Cross multiply
   10,761.58x = 16,142.76 × 2,971
4. Step 4: Simplify right side
   10,761.58x = 47,960,139.96
5. Step 5: Solve for x
   x = 47,960,139.96/10,761.58
6. Step 6: Final answer
   x = 4,456.61